1. Energy saved up to 50%. high intensity 2. Special different view angles mixing lighting design 3. Instant start, no flickering, no humming 4. New inner high efficiency (95%) With heat protection system, the constant current driver can work under un stable voltage. 5. Special circuit design, each LED can work separately thus it can avoid the influnence that a broken LED causes. 6. Working Temperature:-20 60 degree 7. Size:597*597*15mm 8. Weight:6Kg 9. No electric wave. 10. No such hazard that mercury or lead enters the environment 11. No RF interference