Features:100% brand new and high qualityEnergy saving and multifunctionalCan used as indoor bulb and outdoor flashlightRechargeable LED Light Bulb that keeps on illuminating even without electricity supplyExtendable E27 Lamp connector， more flexibility to various lamp basePerfect for power failure emergencies Switch function:put it below， you can plug it in the E27 socket， working like a normal bulb.put it middle， to charge the built-in battery.put it top， it's a flashlight. Specifications:Material: Durable & Flame retarded Plastic CasePower: 4WPower Factor: 0.65Input Voltage: AC 85-240VLighting Source: White LEDLuminous Flux: 200lmLifespan: Approx 30，000 HoursQuatity of LED chip: 42pcsBattery: Rechargeable Built-in 1800mAh Li-ion BatteryWorking time: 4 hoursCharging Time: 5-6 HoursWorking temperature: -20°C - 40°CExtensible Lengh of Lamp holder: 35mm， can be used as a flashlightSize: 150*70mmWeight: 278gColor: White Package includes:1 x Emergence Flashlight（with package box）1 x Remote Controller (CR2025 NOT included)1 x Pendant Rope1 x English& Chinese User Manual