Jiangmen Kofi Lighting Technology Co., Ltd was founded in 2010, which is one of the professional 15W Emergency LED Bulb with Double Batteries manufacturers to produce plastic and metal components and parts for lighting products.The Kofi® 15W Kofi Emergency LED Light Bulb with double batteries With retro B22 base can be used as a regular bulb to light up your space, or back up during power outage. It is 10 hours Charging Time with 4 hours Back-up Time. This Kofi emergency light bulb with double batteries have max. discharge power is from 3W to 3.6W. Once the power cuts, it stays on for emergency lighting. It can work as a normal bulb when there is electric supply. It is suitable for outdoor and indoor activities such as homes, offices, hotels, restaurants, shops, corridors, garages, camping and hiking, etc.