Designed with flexible configuration and simple set up in mind, you can light up your room quickly and brighten your room for your study and having your meals. Illuminated by 1W LED, it is 10x brighter than kerosene lamp. When lighted with 1 LED bulb, it can last for up to 16 hours before recharge and 8 hours each when lighted with 2 LED bulb. It comes with 7.4V/2600mAh rechargeable and replaceable battery. The high efficiency 4W polycrystalline external solar panel charges the battery in 8 hours under direct sunlight. Moreover, you can charge your phone with the USB port.