Introducing the perfect solution for all your lighting needs during power cuts Philips 9W Emergency Rechargeable Inverter Bulb. 810 hours for a full battery charge It takes approximately 810 hours for the bulbs builtin rechargeable lithium battery to fully charge. This allows you to quickly replenish the battery for the next use. In addition to its emergency lighting capabilities, this bulb can be used as a regular light source in everyday situations. Whether you need it for emergency preparedness or general lighting needs, it offers versatility and convenience. Philips, a trusted brand in lighting, ensures that this emergency LED bulb delivers highquality performance and durability. It is designed to provide efficient and longlasting illumination when you need it most.