5w led bulb Specification: 1) High brightness, low electricity consumption and color temperture.your electricity bill will be cut down sharply Save 70-80% electric energy than incandescent lanp. 2) Long lifespan over 50000H. 3) Environment friendy.no UVno infrared radiation,no risk of mercury emission. 4) Vibration resistant Easy to transport and install. 5) It is ideal for replacing incandescent lanp. 6) Diffrernt colors for you select. Item NoBR-BU33-01 BR-BU33-02 BR-BU44-01 BR-BU55-01 Dimension(Dia *Height)mm E14-D44H146E27-D44H135E14-D44H146E27-D44H125E27-D60H110E14-D60H118E27-D60H117E14-D60H125Total Power ConsumptionP(W) 3W3w4W5wCompare traditional LampP(W) 20W20W25W30WLedForward currentIF (mA)350mA350mA350mA350mALED QtyPCS3 pcs3 pcs4 pcs5pcsColor TemperatureTC(K)Warmwhite 3000K-3500K Coolwhite 6500K-7000k Led SourceHQL Luminous FluxLM242Lm 242Lm325Lm403LmColor Index (Ra )RaCool White: CRI > 90Warm White: CRI > 83Operating Life (Hrs)Hrs30,000 50,000