Energy saving lighting bulb: 4U-13W 1)10,000HRS 2)UL,CE,GS,EMC,RoHS,ENERGY STAR,ERP,ISO ... ,000pcs/month 4)OEM accdepted CFL 4U Energy saving lighting bulb: 4U-13W1)1,500,000 pcs ... free4)High luminous efficiency, up to 80% energy saving5)Excellent color rendering, nice light distribution6)OEM ... /B222700-650082520080001772328 Hangzhou Qianlong Electronic Co., Ltd CFL 4U Energy saving lighting bulb(4U-13W)