MegaUniversal LED &reg; EL-505 Emergency LED Light Bulb / Rechargable LED Flashlight 260 Lumens, 40W Equivalent brightness (Auto Light up During Power Blackout up to 4 Hours) Auto Light Up when power failure. 5W equivalent to 40W brightness, E26/E27 base fits with most socket. Stretching bulb base become a flashlight, can last 6 hours with one single charge. Long lifespan: 40,000 hours, eco-friendly.