As many know the life of LED is much longer compare to any other form lighting. This is a result of LED produce light without the use of heat. However, LED is also very sensitive to heat. If LED are place in an environment that is beyond temperature an LED can withstand, then the life of LED will greatly decrease. Therefore, it is important to manage heat. There are a number of ways to manage heat, the most important one, but less obvious one is from the source. The way the LED is position is critical in heat management. If the LED are place too close together as they are in COB (chip on broad), then the rate of heat produce by the LED itself is higher than the rate of heat the heat can function. The minute the lamp is power on, the lamp will heat itself up and start to cause light decay at a abnormal rate. It is also important to ensure the heat level is stablise at a level the LED can function in. This depends on the environmental temperature and the rate the heat can be transfer from the LED to its environment with the help of heat sinks. The higher surface is in contact with LED and with the outside environment, the faster the rate of heat can be transfer away from the LED. That is why fins are commonly to increase the surface area against the environment and why LED function better in low wattage (per LED).