Every space we need to illuminate is unique. Choosing the right LED lighting color can be tough. It’s one of the most important factors when selecting your lighting fixtures and will make a big difference in how successful your project ends up being. In 1931 the CIE published its famous Chromaticity graph. It meant that every color that could be created by a mixture of red-green-blue could be given a unique number on the graph. Around 1940, David MacAdam ran a series of tests and demonstrated that rather than a single color is indicated by a point on a graph,...
In view of the increasing demand for lighting, the requirements for the light color quality of LED lamps in the application market are becoming more and more stringent, and the requirements for the color tolerance of LED lamps are also higher. Because it is difficult for people to intuitively understand color coordinates and DUV indicators, they are more accustomed to using human eyes to evaluate the difference in light color between LED lamps. The human eye evaluates the color difference is very subjective, and it also considers that the control of the color difference of the lamps will increase the...
Outdoor waterproof LED lighting fixtures need to withstand the scorching sun, wind, rain, thunder, and lightning for a long time, and the cost is relatively high. Because it is difficult to dismantle and repair the exterior wall, it must meet the requirements of long-term stable work. The LED is a delicate semiconductor component. If it gets wet, the chip will absorb moisture and damage the LED, PCB, and other components. Therefore, the LED is suitable for working in dry and low temperatures. To ensure the long-term stable operation of LEDs in harsh outdoor conditions, the waterproof structure design of lamps...
Light glare(UGR) stands for Unified Glare Rating. Uncomfortable glare in industrial lighting and common rooms or places in public buildings should be evaluated using the unified glare value (UGR). The lower the value, the less discomfort the user will experience from the lighting. For lamps with a large luminous surface such as panel lights, linear lights should be implemented with plates that can suppress large-angle light. The above method can also be used for lamps with a small luminous surface, which has the advantage of better integration of lamps and ceilings. For outdoor lamps, such as street lamps, GR limits...
There are various kinds of plastic materials, and some are widely used for LED lighting fixtures, such as PC, PMMA, PS, etc. But do you know what’s the difference between them? Let’s have a look here. 1. PC(Polycarbonate) PC, scientific name polycarbonate, this material has a slightly lower light transmittance than PMMA, the penetration rate is about 89% at 3MM thickness, but it is higher temperature resistant than PMMA, the heat distortion temperature is 135 degrees centigrade, and it is resistant to yellowing, so outdoor lamps are often using PC lens, and when it is used as anti-glare microstructure board,...
The Importance of EMC As early as the early 1980s, infant mortality was quite high in the maternity ward area of a hospital in New Jersey. Late at night, the warning light on the baby’s monitor always goes out for no reason. The nurses were so annoyed that they turned off the monitors and went back and forth one by one. After a preliminary investigation, the professor ascertained the truth of the matter. It turned out that the transmitter of a nearby television station was approved by the American Communications Commission and its output power can be increased quite high...
LogosLED has launched its new generation of high-quality LED stadium lights for stadium and sports lighting. Here are the features and details for this LED stadium lighting fixture. 1. Separate modular design, 250W each modular integrated with driver, modules can be assembled and disassembled easily; Venus LED Stadium Light 2. Each module is rotatable up and down by 30degree; 270degree rotatable racked angle allows for precise installation; Venus LED Sport Light Detail 3. Anti UV optical lens, light transmittance>94%, professional light distribution with different beam angles for various applications; Venus LED Stadium Light Distribution Curve 4. CREE / Lumileds chip...
LED floodlights are a cost-effective alternative to traditional lights and use in many environments. Different LED floodlights are suitable for different spaces, and there are various LED flood light suppliers in the oceans of the market. But how do choose a good LED floodlight and a reliable supplier? Here are some advice and benefits you can get with LogosLED’s Luna LED flood lights. 1. Power Selection: Power Range 10-200W LED Floodlights We understand there are very different requirements of luminaires for end-users, so designed 7 modules with a wattage range of 10-200W for the Luna LED floodlights. You can sell...
LED technology started in the semiconductor industry, but is booming in the lighting industry. As a newborn thing, it is facing many questions and discoveries. LED is famous for its extra-long lifespan. However, how we can predict the lifespan of LED without any convincing tests? Is there any difference in the lifespan of LED with the traditional lighting source? Comparing LED with traditional lighting and analyzing the latest standard development meanwhile, hope it will help you understand what the lifetime stands for really. 1. LED development background The life of traditional light sources is mainly determined by the life of...
It is often heard that the short life of LED lamps is mainly due to the short life of the power supply, and the short life of the power supply is due to the short life of the electrolytic capacitor. These claims could make sense. As the market is flooded with a large number of short-lived and inferior electrolytic capacitors, coupled with competing prices, some LED lighting manufacturers use these inferior short-life electrolytic capacitors regardless of quality. So what exactly is the actual situation? 1. The life of the electrolytic capacitor depends on the ambient temperature when it works How...
