About Product:1 products built in maintenance free of the rated capacity of up to 7000mAh of environmentally friendly lead-acid batteries, can be more than 500 times the cycle of charging and discharging. 2.USB and DC output port has over discharge, over current and short circuit protection, working status indication function. 3 products with energy saving, environmental protection solar energy and power adapter DC input port, 3 DC output power port. 4 this product is equipped with 2 3W LED energy-saving light bulbs, the light source adopts imported super bright green, LED, life up to 5000 hours; LED 2 at the same time, low energy consumption, lighting lighting 9 hours more than 5 products USB output compatibility, high output, can meet all kinds of digital electronic products.