How to Buy Best LED Spotlight?
1. Housing: Ceramic> Aluminum> Plastic Coated Aluminum> Glass.
2. Radiator: Choose plastic material of thermal resistance
3. Power Supply: The quality of driver is most important for a lamp, like the heart of a person.
4. Light Source: Gold Wire chip LEDs is best and long lifespan
5. Lens: Must be PMMA (Polymethyl Methacrylate) material
6. More: www.spotlight-china.com