Rechargeable 30w Bulb 30w Rechargeable Bulb COB light BL-599 Emergency LED Light Bulbs 30W Rechargeable Battery very High Quality includes 2 lithium Batteries 18650 Power Off, Light On - Our rechargeable light bulbs work as regular led bulbs, when there is a power outage, our bulb is still on, and will light for up to 2-4 hours, you will never be left in the dark again. Multi-Function, Not Only Bulb - This emergency light bulb is portable, and widely used as a normal bulb, camping light, flashlight, warehouse light, etc. Save Up Electricity Costs - Our rechargeable light bulbs can self-charge when daily use. That will perfectly replace your regular LED light bulbs. Our bulbs with energy-efficient LED chips, save up to 80% Price 9$ and 3 pc for 25$