Never worry when the power goes out with battery light bulbs: These self-charging emergency light bulbs allow you to keep a light on even when the power is off and can function similarly to a flashlight in emergency situations Portable and rechargeable light bulbs: similar to the ebulb emergency light bulbs, the backup battery bulb will automatically recharge when the electricity is on, providing reliable light in any situation Replaces your 60-Watt light bulbs: Get the efficiency of low wattage in emergency light bulbs for power outages. These battery powered light bulbs are the easiest way to cut costs without sacrificing brightness or reliability LED light bulbs that stay on even when the power is off: Keep your lights on whenever you need them with the GE rechargeable light bulbs. These backup battery light bulbs will provide up to 5 hours of light at 95 lumens when fully charged Don't lose out on brightness: These A21 LED rechargeable light bulbs will perfectly replace your traditional 60 watt LED light bulbs as they use low energy each day, even when charging for backup functionality