3. The heat sink looking intense in structure. Except for good looking, high quality driver and light source, superb LED Lights should have well-designed shell structure. The design of shell is connected with led high bay heat sink, because when LED is transforming the light source, part of the electricity would be transferred to heat, and the heat shall be dispersed in the air to keep the LED stable. Overheating temperature of LED lights would cause accelerated light decay and shorten the lifetime of LED lights.