COB (chips on board) is quite a new technology of LED lights. Chips on board refer to the way LED lights are packaged for LED light engines. Multi LED chips are packaged together to form one lighting module, which looks like a lighting panel when lit up. This increases the lumen output per square inch. COB LED lights are energy saving and have quite a long lifespan. COB LEDs use a single circuit to energize the multiple LEDs which reduces the heat generated from each LED chip even further. The biggest advantage of using the chip on board light emitting diodes is that the proper heat dissipation increases the efficiency and lowers failure rates. eWorldTrade has a vast selection of COB LED lights. They are some of the highest quality products, with the lowest wholesale rates in the market. Our manufacturers and suppliers are from around the world, and some of the best as well. eWorldTrade is a business to business marketplace that aims to provide you with the best shopping experience. For any feedback, please leave it at our customer support.