no matter what kinds of LED Area Light ,there is no doubt that the light engine is an important part for a led area light.led area light made by E-lite semiconductor Inc is with a modular design which means the light is made of part by part and you can change or replace any bad part in a easy way .in other words ,we can sale our led area light part by part.for the most important part ,we can also sale it one by one. the light engine for our led area light ,we make it in a good quality.we choose the best led chip and make it a nice thermal management system to cool your led area light .for more detailed information ,you can come to our factory and company and see our led area light in our lighitng show room .maybe we can have a cooperation in our near future.