Features: Be Prepared For Emergency: With battery backup, the emergency led bulb will stay bright during power outage. The self-charging light bulb will always back you up. More Than Just Ordinary Bulbs: It works as ordinary bulb during daily use but it will charge itself automatically and prepares for power failure as emergency light bulbs. You can replace your current bulb in any room, storage, basement, hallway, barn etc. A Must-have Survival Tool : A necessity for household during blackouts, storms. With this light bulb, you don't need to pay on extra lighting equipment for emergency. Get prepared with emergency lights for home power failure. Easy installation : These rechargeable light bulbs are screw in as ordinary LED bulbs (E27). Each light comes with a holder hook, perfect for outdoor activity like camping. Wide Application: LED bulb shape is designed for use in garages, patios, driveways, doorways, basements, hallways, gardens, and anywhere indoor or outdoor where automatic lighting is needed. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: PP Package List: 1/2/3pcs Rechargeable Emergency Light Bulbs