Come and see our amazing products. This 10,000-mah portable solar charger is made from polymer lithium-ion batteries, offering fast charging technology and unparalleled quality.It through the solar panels convert light energy into electrical energy and stored in the built-in lithium battery, and then through the control circuit built-in lithium battery, through exports mobile phone, digital camera, MP3, MP4 and other digital products charging, solar charger without sunshine for a long time, but can be by the power supply (AC100V - 240 - v) built-in lithium battery, suitable for tourism, tourism, travel, field work environment, such as backup power supply.You can enhance your brand by printing your logo on the aluminum casing. Pls confirm with us about the packing info, stock color and exact production time before placing your order.