The Samlex NTX-400-12 is a compact 400Watt pure sine wave power inverter designed to convert 12VDC battery power into 115VAC power for mobile, RV, marine, off-grid, emergency backup, and solar applications. Its pure sine wave output is suitable for a wide range of AC loads while the compact design variable speed cooling fan, USB charging port and built in protection features provide practical operation in space constrained installations.