... on,no flicker, no noise 2.Intergrated thermal design 3.New type of kemel 4.Easy install 5.Export to 15 countries ... other hazardous.Safe and environmental4. From twice optical design and new polymer optical diffusion material to achieve uniform light, no glare ... .5. Intergrated thermal design for power source and LED.6.New type of kernel, heat protection system and constant current driver,ensure ...