The NEBO Blackout Back Up Emergency LED Bulb is a modern, energy-saving lighting solution that remains on even without power. With a soft white color temperature and 2000 lm or more lumens, this bulb is perfect for both indoor and outdoor use. Made of durable aluminum and featuring a screw connector, this emergency light bulb is designed to last with a bulb life of 2,000-4,999 hours. The NEBO brand ensures quality and reliability in this essential home or business lighting product.