According to Chimney Effect, the cool air around the bottom of the heat sink (near the light source) takes place in the heated air, by this passive cooling, it forms a relatively high velocity field of air, It convects hot air with cool air so it diffuses hot air and keeps fluids, thereby removing the heat island effect from the bottom of the radiator. Make more reasonable use of the Principle Chimney, it speeds up the air flow and removes the heat island effect from the bottom of the heatsink. Saves material costs and reduces the weight of fixtures, while improving heat output. The main cooling methods for LED lighting are thermal conductivity and heat convection. Our company is using the aluminum heat sink module which can solve the problem of low cooling efficiency and thermal conductivity which has a great influence on the life of electric and LED and other accessories.