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LED是一种可以将电能转化为光能的电子零件。也就是具备一正极一负极,LED最特别的地方在于只有从正极通电才是会发光,故一般通直流电时,LED会稳定地发光。LED是固态光源和目前应用的高压气体放电灯从原理上有着质的区别。从显色性、寿命等方面已显现优势,其光电转化效率也在不断提升,目前高端产品已超过了传统高压钠灯(以照射到地面的有效光来衡量)的效率,只是价格仍较主流照明的钠灯高出许多。
LED is an electronic component that converts electrical energy into light energy. That is, with a positive and negative, LED is the most special place is only from the positive power is glowing, it is generally through the DC, the LED will shine steadily. LED is a solid state light source and the current application of high-pressure gas discharge lamp in principle there is a qualitative difference. From the color rendering, life and other aspects have shown advantages, the photoelectric conversion efficiency is also rising, the current high-end products have exceeded the efficiency of the traditional high-pressure sodium lamp (to illuminate the ground to measure the effective light), but the price is still more mainstream lighting The sodium lamp is much higher.