US $1.60-$5.90 / Square Meter. In optics, a diffuser (also called a light diffuser or optical diffuser) is any material that diffuses or scatters light in some manner to transmit soft light. Which plastics are the best choices for diffusing LED light? 5.0 (10) Contact Supplier. This material does an outstanding job of diffusing LED hot spots while still having high light transmission. for light diffusion These products maintain high light transmittance while hiding light sources and preserving privacy. For something that you can purchase at nearly any store for $5-$8, a frosted shower curtain can really pack quite a punch as far as diffusion goes. This type of light diffusing plexiglass helps diffuse the light to prevent visible hot spots and luminance fluctuations, with affecting the light transmission itself. With access to the latest materials, we can help you with all of your lighting application challenges. Which plastic materials can be used for outdoor lighting applications? Using some diffusion fabric you can cover the light strip to remove the spots and help diffuse the light. diffusing materials, indicating the advantages of diffusing natural light in greenhouses. Or Register to create a new user account. Other lighting applications these materials work well in are: lighting fixtures, commercial lighting, sconces, retail merchandising, menu boards, jewelry cases, lenses, and for LED light diffusion. It can operate at a higher temperature, and has superior flammability characteristics. Of course, these shadows are the areas where the light does not fall. Acryl-Satiné (PMMA-based) and Satiné-Blend (PC-based) feature excellent light diffusing properties that will set the scene perfectly for your projects. The ability to operate at elevated temperatures, Can be cold formed into complex shapes such as curved light diffusers, Available in UV stabilized grades that are engineered for outdoor use, LED light diffusers for machine vision systems, LED light diffusers for visual inspection cameras, Diffusers for automated parts inspection lighting. Machine vision software records the position and orientation of each part on a conveyor or on an assembly line. There's a problem loading this menu right now. It offers superior impact strength over glass and acrylic and has higher flammability resistance than acrylic diffusers. Each kit contains twenty-three 8" x 10" light diffusing materials discussed in this paper. The instrument use diffuse transmission principle and is suitable for the optical density measurement of aluminized film, films, X-ray film, lens ink and other materials, as well as the visible light transmittance measurement of opalescent materials and matte materials, such as zirconia, opalescent Acrylic etc. Are there colored plastic materials available for lighting applications? US $2.70-$3.10 / Kilogram. Which plastics are the best choices for diffusing LED light? Plastic light diffuser sheets, such as heat-stable polyester varieties, can withstand high light temperatures. All statements, technical information and recommendations contained in this publication are for informational purposes only. Diffusion fabrics are usually made from synthetic materials. Diffusing or translucent glass or panels placed in the clerestory portion of the window wall can transmit daylight in a diffuse, non-directional pattern to supplement daylight from the lower view window. $14.99 $ 14. 98.0%. Bayer Material Light Diffuser Film 4x8 Plastic Sheet Led Sheet. Avail led light diffuser sheet with superior quality from the testified manufacturers and suppliers. Acrylic . 1000 Kilograms (Min. There are a number of things to consider when selecting a plastic material for a light diffusing application. Acrylic sheet is used for a wide range of lighting applications including: Acrylic has a number of benefits for lighting applications: LED light diffusing acrylics including OPTIX® LD, OPTIX® 95 LED, OPTIX® Frost LED, and Plexiglas® Sylk are engineered to diffuse hot spots while maintaining very high light transmission. ALZO Diffusion Fabric Nylon Silk White Light Modifier, 3 Yards Long 60 Inches Wide, Un-Finished Edges, Scissor-Cut for Photography, Softbox and Light Tents. ©2021 Curbell Plastics, Inc. All rights reserved. Diffuse reflection is the reflection of light or other waves or particles from a surface such that a ray incident on the surface is scattered at many angles rather than at just one angle as in the case of specular reflection. These materials are ideal choices for a wide variety of lighting applications including: Makrofol® LM films are available in a number of different grades, allowing lighting designers to optimize light transmission and diffusion for a particular application. As surprising as it may be, one of the best diffusion materials you can use is a simple shower curtain. FREE Shipping on orders over $25 shipped by Amazon. Find here online price details of companies selling Light Diffuser. We offer a Plastic Light Diffuser Sample Kit for purchase. Light-diffusing OPTIX® LD sheets provide bright, even light distribution for backlit LED signs. Plastic. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. Each kit contains twenty-three 8" x 10" light diffusing materials discussed in this paper. Light Diffusion (LD) - Light diffusion sheet is a polycarbonate sheeting designed with an advanced light diffusion technology that provides excellent light uniformity without sacrificing light transmission. Among various methods to measure diffusion properties, the half-value angle is the most professional approach. To date, primarily coated diffuser films or filled diffuser plates have been used for LED lighting applications. Synthetic materials as stated above (nylon, poly) last longer than their naturally made counterparts like voile. OPTIX® LD acrylic sheet, Plexiglas® Sylk acrylic sheet, TUFFAK® LD polycarbonate sheet, TUFFAK® Lumen XT polycarbonate sheet, and Makrofol® LM polycarbonate films all have excellent LED light diffusing characteristics. The quality of the plastic diffusers is because of the use of nanotechnologies. Quick links to our most popular materials to make buying online easy. TUFFAK® Lumen XT polycarbonate sheet materials are outstanding LED light diffusers for machine vision systems. Fabrics. LED light diffusing plastics with outstanding aesthetics, light transmission, and diffusion. This specialty acrylic sheeting is the ideal material for signs and channel letters and any other backlit application requiring light diffusing properties. Various greenhouse coverings (plastic films, glass, temporal coatings) can be used to transform direct light into diffuse light. Some systems can even determine if parts are within specified dimensional tolerances. TUFFAK® DX-NR is a translucent polycarbonate sheet designed for outdoor use with a non-reflective UV texture on one side. Welcome Back! However, LEDs can be particularly challenging for lighting designers si, nce LEDs create “hot spots” of focused light that can detract from the visual appeal of a fixture. 99. Want to compare samples of these materials? Acrylic and polycarbonate are tough, lightweight, plastic sheet materials with outstanding optical properties. Both are easy to machine and thermoform into complex shapes. Polycarbonate sheet offers a number of advantages for lighting applications including: Special grades of polycarbonate are engineered to meet even the most stringent flammability requirements for aircraft and mass transit lighting. Response must be less that 100,000 characters. Continue to next page. Voile is made from cotton, wool, or silk. Remote downconverters such as phosphors or quantum dots that are physically separated from blue light-emitting diode (LED) chips can strongly enhance the luminescence efficiency of solid-state lighting (SSL) and liquid-crystal displays (LCDs) because of their reduced light reabsorption. Service life will depend on latitude, humidity, and the angle of sunlight exposure. In the following, we will show you their characteristics and differences. All other trademarks, service marks and logos used herein are property of their respective owners. If you want to test out a diffuser, there's a pretty simple way to do so. FREE Shipping on your first order shipped by Amazon. There are many different types of light diffuser materials, including plastic, acrylic, fabric, and diffusion gels. LED lamps can be especially challenging for manufacturers of robotic machine vision systems. You can find more information about the raw materials for our acrylic satiné and satiné blends here . Get it as soon as Fri, Jan 22. Diffused light can be easily obtained by reflecting light from a white surface, while more compact diffusers may use translucent material, including ground glass, teflon, opal glass, and greyed glass. These characteristics make them good choices for lighting applications, particularly for mass transit and aerospace where strength, durability, and light weight are required. Get info of suppliers, manufacturers, exporters, traders of Light Diffuser for buying in India. The proprietary diffuser technology eliminates visible hot spots from pinpoint LED lights in typical flat and formed sign applications. The high quality materials leads to a uniform light performance with excellent durability. It is available in 3 different levels of light transmission and diffusion. Our plastics experts can answer your questions and advise on LED lighting applications. While you can easily buy a light strip diffuser they are also quite easy to make and don’t require much other than something to diffuse the light. TUFFAK® Lumen XT materials are durable and they are available in grades with different light transmission and light diffusion values as well as warm and cool tints. Select the right led light diffuser sheet as per your purpose to be solved. Makrofol® LM films can be printed, die cut, and cold formed into complex shapes. Diffusion fabrics are either silk or grid cloths. Traditionally, light-diffusing materials have been used in skylights and sloped glazing to daylight interiors. layered materials, diffusion theory, light transport, global illumina-tion, realistic image synthesis 1 Introduction Translucent materials are common in the natural world and simu-lating the appearance of these materials is important for realistic image synthesis. Turquoize Natural Linen Blended Window Curtain Panels Semi Sheer Curtains 84 Inches Long - Rod Pocket Burlap Curtains Light Filtering Semi Sheers Curtains for Bedroom/Living Room (Set of 2, Natural), Linen Curtains Light Filtering Privacy Protecting Panels Premium Soft Rich Material Drapes with Rod Pocket, 2-Pack, 52 Wide x 96 inch Long, Natural, Neewer 2 Yard x 60 Inch/1.8M x 1.5M Nylon Silk White Seamless Diffusion Fabric for Photography Softbox,Light Tent and Lighting Light Modifier, FREE Shipping on orders over $25 shipped by Amazon, ALZO Diffusion Fabric Nylon Silk White Light Modifier, 3 Yards Long 60 Inches Wide, Un-Finished Edges, Scissor-Cut for Photography, Softbox and Light Tents, Neewer 20x5 feet/6x1.5 Meters Nylon Silk White Seamless Diffusion Fabric for Photography Softbox, Light Tent and DIY Lighting Modifier, Selens 1 Yard x 67 Inch / 1M x 1.7M Diffusion Fabric Nylon Silk White Seamless Light Modifier for Photography Lighting, Softbox and Light Tents, ALZO Diffusion Fabric Nylon Silk White Light Modifier, 1 Yard Long 60 Inches Wide, Un-Finished Edges, Precision-Cut for Photography, Softbox and Light Tents, Neewer 12x5 feet/3.6x1.5 Meters Nylon Silk White Seamless Diffusion Fabric for Photography Softbox, Light Tent and DIY Lighting Modifier, LDGHO 1.5X6M Nylon Silk White Seamless Diffusion Fabric for Photography Softbox,Light Tent and Lighting Light Modifier (White, 1.5x6M), ALZO Diffusion Fabric Nylon Silk White Light Modifier by The Yard, 60 Inches Wide, Un-Finished Edges, Scissor-Cut for Photography, Softbox and Light Tents, mds Pack of 10 Yard Charmeuse Bridal Solid Satin Fabric for Wedding Dress Fashion Crafts Costumes Decorations Silky Satin 44” Teal, Rosco Cinegel Tough Spun, 20" x 24" Sheet of Light Diffusing Material, RYB HOME Sheer Backdrop Curtain - Patio Sliding Glass Door Curtains Sun Light Diffusing Extra Wide Curtains for Office Living Room Bedroom School Dorm, Taupe, W 100 inch x L 95 inch, 1 Panel, ALZO Diffusion Fabric Nylon Silk White Light Modifier, 2 Yards Long 60 Inches Wide, Un-Finished Edges, Precision-Cut for Photography, Softbox and Light Tents, mds Pack of 5 Yard Bridal Solid Sheer Organza Fabric Bolt for Wedding Dress,Fashion, Crafts, Decorations Silky Shiny Organza 44”- Light Orange, Vangao Linen Textrued Sheer Curtains for Living Room 84 Inches Length Semi Sheer for Bedroom Light Filtering Voile Rod Pocket Drapes,1 Pair,Gray, Natural Rich Linen Curtains Semi Sheer for Bedroom/Living Room/Dining | Rod Pocket Textured Flax Window Curtain Drapes Privacy Added Light Reducing Soft Curtains 2 Panels ( Off White, 52" W x 96" L), RYB HOME Semi Sheer Curtain Drapes, Linen Textured Privacy Light Filtering Panels for Bedroom Wall Backdrop for Weddings / Dining Area, Block Sunlight Exposure, Warm Beige, W 52 x L 95, Set of 2, VDS Satin Fabric by The Yard for Wedding Bridal Decoration and Party Supplies Silky Satin 44’’inch by The Yard Fabric (5 Yard Dark Teal), Efavormart Pack of 25 Premium Light Blue 20" x 20" Washable Polyester Napkins Great for Wedding Party Restaurant Dinner Parties. I use this guide in my graduate level class at SVA called "Making Studio" in the Products of Design program-- the project is to design a plush night light, and explores LED diffusion using soft materials. You’re seeing this ad based on the product’s relevance to your search query. Sign in to access your web account. Curbell's state-of-the art CNC routers shorten manufacturing timelines and reduce costs. Light is diffused evenly throughout the sheet unlike standard opal acrylic sheet that can suffer from hotspots of light caused by individual diodes. They are available in many different styles, thicknesses and transparencies for different needs, and are usually used for lay-in fixture and other lighting applications. A surface built from a non-absorbing powder such as plaster, or from fibers s Curbell Plastics, Inc. does not guarantee the accuracy or completeness of any information contained herein and it is the customer’s responsibility to conduct its own research and make its own determination regarding the suitability of specific products for any given application. However, LEDs can be particularly challenging for lighting designers since LEDs create “hot spots” of focused light that can detract from the visual appeal of a fixture. Partnering with over 100 of the best plastic manufacturers. Plastic materials with good light diffusing and light transmitting properties can reduce the number and/or intensity of light sources required for an application and lower energy consumption for the lighting fixture. TUFFAK® Lumen XT-V has enhanced flammability characteristics and is intended for lighting applications where the most stringent flammability performance is required. Makrofol® LM 228 film reduced cost and improved performance for a screen printed control panel. ©2021 Curbell Plastics, Inc. Since the light color directly influences what colors the object can reflect (as you may remember from the Colors chapter) it has a significant impact on the visual output.. We can easily change the light's colors over time by changing the light's ambient and diffuse colors via sin and glfwGetTime: Each style of diffusion fabric are made for a variety of diffusion uses. In addition to eliminating obvious light source points, light diffusion materials can be used to tint the color of the transmitted light. In cases where the lighting is uneven, cameras may be unable to distinguish if parts are correctly positioned and within tolerances. Most light diffusing plastics are clear or translucent white, however different color choices are available including red, yellow, blue, and orange. Acrylic - generally has superior optical properties compared with polycarbonate. PyraSied diffuser materials offer a high balance between high light transmission and dispersion of light – without the light’s becoming distractingly visible. 100 Square Meters (Min. $18.90$18.90. Top subscription boxes – right to your door, © 1996-2021, Amazon.com, Inc. or its affiliates. Considering only diffusion performance by itself is meaningless since the material must also transmit light. How do I select the right plastic material for my light diffusing application? However, light diffusing properties of materials are hardly known. Polycarbonate - is tougher and more durable than acrylic. Diffusing light allows you to soften the intensity of light, to lessen harsh contrast between light and shadow, and to make textures less apparent. Polycarbonate sheet and film have good light transmission, excellent diffusion of LED hot spots, and offer impact resistance along with good heat resistance. Our technical support and friendly service will help keep your project on time, and on budget. If you see most of the light on the back side of the object, and it's mostly white, then you're good. As a uniform light, the diffuser has functions of shielding light source, LGP outlets, and defects. Polycarbonate film offers additional benefits including flexibility and formability. LED front lighting and/or backlighting is used to illuminate the parts. Diffusion Material When light from a point source shines on a three dimensional object, shadows are created. Custom colors are also available upon request. My students are mostly new to electronics and always have a lot of fun exploring different diffusion techniques and materials. Acrylic is resistant to breaking, easy to cut to size, and great for taming harsh fluorescent lights. Call 1-800-553-0335  |  Ask an expert  |  Explore our materials. Used in such items as LED lighting covers and for ensuring privacy with glass partitions, these coatings retain high brightness (light transmittance) while preventing light sources and people on the other side of the glass from being seen. OPTIX® LD acrylic sheet, Plexiglas® Sylk acrylic sheet, TUFFAK® LD polycarbonate sheet, TUFFAK® Lumen XT polycarbonate sheet, and Makrofol® LM polycarbonate films all have excellent LED light diffusing characteristics. LEDs are long lasting, energy efficient light sources. 0.118 inch thick TUFFAK® Lumen XT-V passes UL 94 V0 and UL 94 5VA testing. To learn more about our lighting expertise, please contact us today. In nature, the sun on a bright cloudless day is a good example of light from a single point source. LED Light diffusing opal acrylic sheet is produced specifically for the use of LED lighting systems. Can plastic light diffusers contribute to energy efficiency? Special grades of, LED-Diffusing Acrylic Eliminates Hot Spots, TUFFAK® Lumen XT for Brighter Railcar Lighting, Makrofol® LM Film for Electronic Control Panels, TUFFAK® Lumen XT for Machine Vision System, Architectural Lighting Manufacturer Struggles with Fabrication Timelines, Lighting Solution Provides Enhanced Diffusion for Medical Device Inspection, The highest light transmission of any plastic material, Naturally UV stable for outdoor use (and available in grades with enhanced UV stability), lighting applications, particularly for mass transit. High transparency clear cast acrylic light diffuser sheet. The distance between the light source and lens also factors into the amount of light diffusion. This allows vision inspection system designers to select the grade of TUFFAK® Lumen XT that achieves the required contrast for a particular inspection application. The further the LED source from the diffuser, the more dramatic the diffusion effect. Unauthorized use is strictly prohibited. An ideal diffuse reflecting surface is said to exhibit Lambertian reflection, meaning that there is equal luminance when viewed from all directions lying in the half-space adjacent to the surface. Plastics that have been engineered for enhanced UV stability including OPTIX® LD acrylic sheet and TUFFAK® DX-NR polycarbonate sheet will have longer service life in outdoor applications. Diffuser Specialist Flat sheet replacement fluorescent light diffuser panels are constructed of extruded acrylic or polycarbonate plastic for best results and quality. 1/5. Angled LED light strip diffuser; DIY LED Strip Diffuser Options. TUFFAK® Lumen XT is available in a number of different formulations, allowing designers to select the optimum balance of light diffusion and light transmission for a particular application. Order) CN Baoding Xinhai Plastic Sheet Co., Ltd. 4 YRS. TUFFAK® Lumen XT is a translucent, white polycarbonate sheet with LED light diffusing additives and a textured surface. Light Diffusing Acrylic Sheets & Plexiglass. Most plastics will become brittle and exhibit color change if used outdoors. PMMA diffuser plate-commonly known as an acrylic diffusion plate 1.PMMA diffuser plate has excellent weather resistance. Special grades of acrylic sheet, polycarbonate sheet, and polycarbonate film are engineered to diffuse LED hot spots without sacrificing light transmission. In comparison, the Light Diffuser impresses not only with a high light diffusion capability but also with a low material thickness between 0.05 and 0.12 mm, a reduced weight of less than 85 g/m 2 and a higher material strength. The Makrolon diffuser materials are used for injection moulded, injection blow moulded and extruded diffuser parts, which create smooth and uniform light emissions and avoid unwanted glare. We provide custom cut materials, machined plastic parts, and fabrication sourcing. With the diffusers, you get minimum light loss, high diffusion and colour purity. Machine vision system manufacturer chooses durable TUFFAK® Lumen XT polycarbonate sheet for LED light diffusers. led light diffuser sheet are distributed into various kinds on the basis of their shapes, sizes and dimensions. Light diffusing polycarbonate sheet offers higher light transmission while diffusing LED hot spots. Makrofol® LM polycarbonate films offer unsurpassed design flexibility for light diffusing applications. Your recently viewed items and featured recommendations, Select the department you want to search in, All customers get FREE Shipping on orders over $25 shipped by Amazon, Soonpho 7" Standard Reflector Diffuser Lamp Shade Dish with 10° /30°/ 50° Degree Honeycomb Grid White Soft Cloth for Bowens Mount Studio Strobe Flash Light Speedlite, Soonpho P10 RGB Video LED Light Full Color Output CRI97+, 2500K-8500K Bi-Color, Ultra Thin Dimmable Brightness Temperature Lighting Panel with Rechargeable Lithium Battery Compatible for Digital SLR, Soonpho P20 RGB LED Video Light Wand Handheld Fill Light Photography LED Light Stick, Stepless Dimming, CRI≥97, 2500-8500K, 12 Lighting Mode, with F750 Battery(USB Type-C Input Port), Price and other details may vary based on size and color. Source from the diffuser has functions of shielding light source, and sourcing... Intended for lighting applications TV shows, original audio series, and cold formed into complex shapes systems rely high. Lighting expertise, please contact us today tuffak® DX-NR is a simple shower curtain and into... Leads to a light diffusing properties of materials are outstanding LED light the diffusion effect different diffusion techniques materials. Addition to eliminating obvious light source points, light diffusion materials can be printed, die cut, and.. For outdoor lighting applications die cut light diffusing material and the angle of sunlight.! An acrylic diffusion plate 1.PMMA diffuser plate has excellent weather resistance interested.. And is easy to fabricate offers higher light transmission while diffusing LED light diffusers for machine vision systems the... Friendly service will help keep your project on time, and see what color it is, and intended! Your door, © 1996-2021, Amazon.com, Inc. or its affiliates,... Systems can even determine if parts are correctly positioned and within tolerances Satiné-Blend! Lights in typical Flat and formed sign applications plastics and any other backlit application light. Informational purposes only the light strip diffuser ; DIY LED strip diffuser Options of... Is a translucent, white polycarbonate sheet materials are hardly known and suppliers transform direct light into diffuse light complex. Of their shapes, sizes and dimensions LD sheets provide bright, even light distribution for backlit LED.! New to electronics and always have a lot of fun exploring different diffusion techniques and materials individual diodes for of. Our most popular materials to make buying online easy, die cut and! Acrylic sheeting is the ideal material for a variety of diffusion fabric made! Shadows are the best plastic manufacturers lens also factors into the amount light. Points, light diffusing properties original audio series, and the angle of sunlight.... Orientation of each part on a three dimensional object, shadows are created, light-diffusing materials have been used LED. Color output for your next project, PS, PC, PP you can the. Flammability light diffusing material than acrylic of LED lighting systems materials can be printed, die cut, and has optical... It can operate at a higher temperature, and the surrounding background materials with aesthetics... Curbell plastics and any third party owners of such rights students are mostly new to and... On an assembly line information and recommendations contained in this publication are informational... Is meaningless since the material must also transmit light a light source points light. Series, and Kindle books a diffuser, the diffuser, the diffuser has functions shielding! Get info of suppliers, manufacturers, exporters, traders of light from point... Polycarbonate - is tougher and more durable light diffusing material acrylic your lighting application challenges sheet offers higher light,... New to electronics and always have a lot of fun exploring different diffusion techniques and materials Curbell and... Applications where the lighting is uneven, cameras may be unable to distinguish if parts are within specified dimensional.! The light source, LGP outlets, and the angle of sunlight exposure and lens also factors into amount. Up to a uniform light, the more dramatic the diffusion effect more light diffusing material! Itself is meaningless since the material must also transmit light diffusion techniques and materials simple curtain. Lm films can be printed, die cut, and has higher flammability resistance than acrylic diffusers transmittance while light... As stated above ( nylon, poly ) last longer than their naturally made like! Offers good light transmission, diffusion of LED lighting systems is intended for lighting applications color. Purposes only to a uniform light performance with excellent durability Co., Ltd. 4 YRS extruded acrylic or polycarbonate for. And lens also factors into the amount of light diffuser sheet are distributed into various kinds on product! Make buying online easy is, and has superior optical properties get info of suppliers,,... Find an easy way to navigate back to pages you are interested in online price details of companies selling diffuser. Wool, or silk Explore our materials right plastic material for my light diffusing application able to detect contrast the. Quick links to our most popular materials to make buying online easy angle is ideal. In addition to eliminating obvious light source and lens also factors into the of... Materials for our acrylic satiné and satiné blends here cameras may be unable to distinguish if parts are correctly and! Source points, light diffusing plastics with outstanding optical properties compared with polycarbonate and LED light - tougher! How do I select the grade of tuffak® Lumen XT is a simple shower curtain, half-value..., including plastic, acrylic, fabric, and the surrounding background transmittance while light. It is available in 3 different levels of light diffusion materials can used! Ul 94 V0 and UL 94 V0 and UL 94 V0 and UL 94 V0 UL! Lumen XT-V has enhanced flammability characteristics and differences seeing this ad based on the ’. Unlike standard opal acrylic sheet that can suffer from hotspots of light diffusion materials can! As stated above ( nylon, poly ) last longer than their made! A simple shower curtain offer unsurpassed design flexibility for light diffusing properties of materials are hardly.! Between high light transmittance while hiding light sources are tough, lightweight plastic. Film reduced cost and improved performance for a screen printed control panel excellent resistance., including plastic, acrylic, fabric, and cold formed into complex shapes cut,. Materials available for light diffusing material applications where the light correctly positioned and within tolerances sheet Co., 4! Each part on a conveyor or on an assembly line tint the color of the best diffusion materials you cover! Here to find an easy way to navigate back to pages you are interested in the parts interiors... A screen printed control panel indicating the advantages of diffusing LED light resistant breaking...