LED Republic 2-PACK Dimmable Downlight retrofit UL 10W 900 Lumen 4-inch 5000K recessed light 780 Lumens at 9W - Equivalent to 75W,CCT: 5000K ~ 5500K Up to 70% energy saving compared to standard CFL Long lifetime of 36,000 hours Environment friendly, without mercury or any other hazardous substances "Led Republic" is the only authorized one to sell LED Republic products, if you are not purchased from "LED Republic", there will be NO Wanrranty, and please immediately complained to the Amazon, you can get a full refund!!