... light bulb without any modification except the ballast led down light led led lightProduct Description1)15W LED Ceiling lamp will replace traditional MH,HPS,HQ light ... (4000~4500K),WW(2700~3500K)12)IP Grate:IP6013)Lamp Efficientcy:>95%14)Lamp life Span:>50,000hours15)Color Index(CRI):>8016 ...