When connected to solar panels this Gridless Revolution Solar Adapter can power 12V electrical devices with no batteries. This device is 100% compatible with any 12V inverter (pure sine or modified sine), phone chargers, lights, motors, etc. It features standard solar panel connector inputs, a 12V cigarette socket output and 12V 5/16" post terminal output. Additional solar panels can be wired in parallel to increase capacity. No batteries are included or required to operate the adapter, making it an ultimate portable power device. Perfect for camping, tailgating, construction work, remote agriculture, etc. Features: Portable: Connect directly to your solar panel, no battery needed! Up to 60V max solar input Works with almost any solar panel(s) or combination of panels. No charge controller needed Designed and assembled in Houston, TX, USA Specifications: Solar Voltage Input: Standard: 15-40 VDC High Voltage: 40-60 VDC Power Output: 12VDC regulated 12VDC Cigarette Plug 12VDC 5/16" Post Terminals Efficiency: up to 96%