min 4u energy saving lamps, 9w,11w,13w , tube diameter 7mm,9mm ,life :8000 hours Min 4 U energy saving lamps/cfl/low energy lightbulbs, compact and ultra bright......2700k,4200k,6500kTriphosphor , B22/E27Life upto 8000 hoursCE RoHS 4 U energy saving lamp LED light