Come and Check Our Branding Solutions.Advertise your brand on this 10000 mAh waterproof solar power bank. It uses the latest monocrystal silicon solar panels that offer a efficiency in converting sunlight to energy. Built-in 10000mAh high capacity polymer battery equipped with a compact solar panel, which could recharge the battery itself under sunlight.Dual USB and powerful LED light - Makes it easy to charge two smartphones simultaneously or a tablet at full speed.Led lights can be used as flashlight with Steady-SOS-Strobe mode. Pls check inventory and detailed info before placing your orders.