Currently, the modular designed LED Lights are of big size, such as LED Street Light s made by some enterprises. However, the components or modules are only replaceable by the manufacturer, and those from other enterprises are not replaceable at all. There have been researches on led high bay products standardization, but no standards have been published yet. On the other side, the similar products have reached a good level in lifetime and reliability in the long term, and technology is developing fast. In the near future, the components of LED lights may have the same lifetime with LED light source, and the usage time of the whole light can reach over 10 thousand hours.