Prepare for unexpected power outages with the NEBO BLACKOUT BACKUP Emergency Bulb 2-pack, an innovative solution for home lighting. This versatile LED bulb functions as both a standard light source and a reliable emergency light, fitting effortlessly into most lighting fixtures. With a rechargeable internal battery, it provides up to 12 hours of bright, reassuring light during sudden blackouts.Specifications and Features: Non-Dimmable 1-Year Warranty Smart Battery Protection For Indoor and Outdoor Use Rechargeable Internal Battery Durable Impact-resistant Construction Not for use in totally enclosed luminaires Color Temp: Soft White (3000K Color Temp) Energy Efficient 8-Watts (60W Replacement) Run Time: Up to 12 Hours of Emergency Lighting 4 Modes - Backup Low/Medium/High, Fixture High Fit Guide: A70 Size (Equivalent to Standard A21) with E26 screw base Compatibility: 100-240VAC, 50/60Hz 8W AC compatibility with US and worldwide voltages