Energy saving lighting bulb: 4U-13W 1)10,000HRS 2)UL,CE,GS,EMC,RoHS,ENERGY STAR,ERP,ISO 3)1,500,000pcs/month 4)OEM accdepted CFL 4U Energy saving lighting bulb: 4U-13W1)1,500,000 pcs/month2)Up to 10,000 hours lifetime3)Flicker free4)High luminous efficiency, up to 80% energy saving5)Excellent color rendering, nice light distribution6)OEM accepteDetailed electrical parameters are as follows ...