Overview: Built-in 750m Ah rechargeable lithium battery powers devices even without sunlight Self-Recharged via the onboard dual-panel 0.8W photocell (solar panels) Built-in Handy White LED Flashlight Dual USB (Universal Serial Bus) output port Can also be recharged by the included AC adapter & Car Charger, when sunlight is not available Supports USB (Universal Serial Bus) powered devices (5V) Comes with English User's Guide & various adapter cables for charging most cell phones Key specifications: Solar panel capacity: 0.8 Wh Built-in battery: 750m Ah Output voltage: 5.0V~5.5 V Output current: 180m A Unit weight: 92