led

Tips of LED products

LED (Light-Emitting-Diode Chinese meaning light-emitting diode) is a way to visible light energy into the semiconductor, it changes the energy-saving lamps and incandescent tungsten light emitting three basic principles of dye, while the use of electric light. According to the analysis, LED is very obvious characteristics, long life, high luminous efficiency, no radiation and low power consumption. LED spectrum is almost all concentrated in the visible light spectrum, the luminous efficiency of more than 150lm / W (2010 years). The LED and incandescent, spiral energy saving lamps and T5 fluorescent trichromatic comparison, results showed that: ordinary incandescent light efficiency 12lm / W, life expectancy is less than 2000 hours, spiral energy saving lamp light efficiency 60lm / W, life less than 8000 hours, T5 fluorescent lamps compared to 96lm / W, life is about 10,000 hours, while the diameter of 5 mm white LED light effect can be more than 150lm / W, life can be greater than 100,000 hours. It was also predicted that the future of LED lifetime limit will be infinity. Power, refers to the luminous power, generally refers to 0.5W, 1W 3W 5W or higher. Light intensity and the lumen is smaller than the power, but the same heat is also great, and now are single high-power applications, plus a large heat sink. 0.06W low power is generally about. LED flashlight is now generally used by low-power, light scattered dispersed, depending on the angle LED's light, there is a wide angle small angle of the points, dispersed small-angle, large angle was scattered. The market with a straw hat flashlight head is usually done. Works well. Now some manufacturers do not worry about the quality, do take the defective LED flashlight, before long is the death of light. LED brightness is there with the LED emitting angle of the inevitable relationship, LED's brightness is higher the smaller the angle, there is no bright not bright, that is cheating the child, if it is good quality LED whether is which LED manufacturers are all about the same brightness, but not the same production technology, life is slightly different, because we are using LED chips that several foreign countries. If the LED180 5MM degree angle to the brightness of only a few white Article MCD, if the brightness is 15 degrees more than ten thousand to twenty thousand going to MCD brightness, and brightness difference of several times, and if it is used for lighting in the outdoor is best to use a high-power LED the brightness even higher, there is a single power 1W, 3W, 5W, there are combined into one with multiple high-power high-power LED, power has to go to a few hundred.