Instapark Mars20S-SP30 Portable & Rechargeable Emergency / Survival 20-watt Solar Power Generator with Add-on 30-watt External Solar Panel, Built-in 145Wh Lithium Battery, 150-watt Inverter & Triple Outputs, 110V/AC, 12V/DC & Dual 5V/DC USB, IP65 Water-proof Self-contained portable & rechargeable solar power generator for travel, outdoor activities and emergency / disaster preparedness AC & DC outputs for charging multiple devices such as small appliances, 12V car electronics, laptop computers, tablet computers, cell phones & other portable gadgets simultaneously Charging the built-in 145Wh Lithium battery indoor or outdoor: 110V/AC wall outlet with included power cord or 20 watts mono-crystalline solar panel with one 30-watt external solar panel included Built-in super-bright 3 watts white LED bulb with 2 selectable modes, flashlight or SOS beacon light Back-lit LCD display with battery strength, input, output and operation status indicators