Energy Saving Lighting:4u 9w-30w 1)Up to 8,000 hours lifetime 2)UL,CE,GS,EMC,RoHS,ENERGY STAR,ERP,ISO 3)1,500,000pcs/month 3U CFL Lamp:4U 9w-30W1)1,500,000 pcs/month2)Up to 8,000 hours lifetime3)Flicker free4)High luminous efficiency5)up to 80% energy saving6)Excellent color rendering, nice light distribution7)OEM accepted8)Easy to use and safetyDetailed electrical parameters are as follows ...