The Topolo Dual-Charge Solar Lantern is an extremely versatile source of light whether around the house,Website:http://www.topololighting.com, in the backyard, or on a camping expedition. Give the Solar Lantern a quick charge with the 5V DC cord or using the solar cells located at the top of the light. Omni-directional LED lights provide illumination in every direction around the campsite;adjust brightness when necessary using the Glow-in-the-dark operation button. 2-way charging for battery 1. Outdoor charging: Place the lantern in the sun, the solar panel will charge battery automatically. During charging, the red LED is on. 2. Indoor charging: Insert the USB plug of USB cable to USB port of AC/DC adaptor or PC and plug the round plug to lantern, battery will be charged and the red LED will be on. The fully charging time is about 2-3hours. Solar panel :1.7W/11V*2pcs , Cable : 2.5MBattery :2600mah /7.4V , lithium Mobile charger output : 5V 500maMaterial :ABS Output power :0.9W*2 , 100lm±5%Mobile charge function:3/5 in 1 charging connector