Features:Light Bulb for Emergency: Be prepared for emergency. Use a battery, the emergency LED bulbs will stay bright during a power outage. Self-charging bulbs will always support you. Heavy Duty: Not just an ordinary light bulbs. It can work like an ordinary light bulbs in daily use, but it will automatically charge and act as an emergency light bulbs to prepare for power outages. You can replace the current bulbs in any room, storage room, basement, corridor, barn, etc. Long Life: The built-in battery will be charged under normal lighting conditions. If charged for 8-10 hours, the bulbs can provide 3-5 hours of continuous lighting after power failure. Portable: This lighting tool is small in size and lightweight so that can take it for outdoor camping easily.Fit Occasions: This night light can be used in many occasions such as outdoor camping, night fishing and travelling. Specification:Material: Plastic, aluminumColor temperature: 6500K Length: 95mm Note:There might be a few color distortions due to different computer resolutions.There might be a slight error due to different hand measurements.