This high-efficiency pure sine wave inverter ensures the best performance of your sensitive onboard electronics and demanding motor loads. Built-in 30A transfer switch automatically detects when shore power status changes to ensure power is always available yet conserves your battery power when utility power is available. Detachable front panel display shows battery and output load status and can be mounted anywhere in your boat. It also features a USB port for charging your portable electronic devices. Output Waveform: Pure Sine WaveContinuous Capacity: 2000W Surge Capacity: 4000W AC Output: Hardwire Dimensions: 17 5/8" x 9 1/8" x 4 1/2" Approvals: cETLus certified to UL458, CSA C22.2 no. 107.1 Safety Features: Low Battery Alarm and shutdown, Overload and Over-temperature ShutdownWarranty: One year