The advantages and disadvantages of LED corn lights
Advantage
High energy: saving energy is clean and is environmentally friendly. DC drive, ultra-low power consumption (single tube 0.03-0.06 W) electro-optical power conversion close to 100%, the same lighting effects than traditional energy sources more than 80%.
Long life: LED light source that some people call the long life lamps, which means the light never goes out. Solid cold light source, epoxy resin, light body and no loose parts, there is no filament light easy to burn, heat deposition, the light fades and other shortcomings, the service life up to 60000-100000 hours, 10 times longer than conventional light sources above.
Many changes: LED light source with red, green, blue trichromatic principle, under the control of computer technology to make three colors with 256 gray levels, and any mix, you can generate 256 × 256 × 256 = 16777216 colors to form a different light color combination of varied to achieve a variety of dynamic effects and variety of images, you can choose a variety of colors instead of ordinary incandescent light bulbs, higher brightness.
The environmental protection: environmental benefits of better, no ultraviolet and infrared spectra, neither heat nor radiation, glare small and recyclable waste, no pollution, no mercury elements, cold light source, safe touch, typical of the greenlighting.
High-tech tip: compared to the monotonous glow of traditional light sources, LED light source is low voltage microelectronic products, the successful integration of computer technology, network communication technology, image processing technology, embedded control technology, so it is also digital information products, semiconductor optoelectronic devices, “high point” technology, with online programming, unlimited upgrades, flexible features.
Disadvantages: led lamps Despite its many advantages, but in a very passive situation of any course, restricted its extensive high prices, making it difficult to into ordinary people’s homes, followed by heat lamps is currently a majorproblem, so let popularity led lamps reduce costs and solve the heat lamps is more critical.
Inadequate
LED energy efficient environmentally friendly for people well-known, but the LED itself or there are some problems, LED lamp Corn Light is no exception.
Industry for heat from both sides of the the thermal conductivity (HeatConductivity) and cooling (Heatdissipation) has always been discussed. For the industry too much emphasis on the LED heat dissipation in the front-end approach to additional heat-conductive layer, the crown Chemicals Corp. vice president of research and development, Dr. Ye Shengwei, the fundamental solution is quite different from the general practice of the industry. Dr. Yip, import the following formula Thermal Resistance Rtotal is = Rl – s + Rs + Rs-a, the entire LED total thermal resistance of LED to the thermal resistance between the substrate Substrate (RL-s), for signing the substrate thermal resistance ( Rs) coupled to the substrate to the air side of the thermal resistance (Rs-a) the sum of the three.
MCPCB heat industry’s usual aluminum substrate, the bottom of the aluminum block and the upper copper foil group, in the middle fill thermal plastic (Adhesive). How to better solve the heat problem, this is a problem worthy of study.
To better solve the problem of heat dissipation, the development of corn lamp aluminum lamp body. Using aluminum lamp body, together with the aluminum plate. Can solve the heat problem, thereby increasing lamp life.
