The Sure-Lites INV series is a UL Listed stand-alone modified sine wave output inverter designed to provide power to designated emergency lighting fixtures. In a power loss situation, the unit will supply 20/35/55/110/220/375/600 Watts of power from the onboard battery supply. It works in conjunction with incandescent, LED, and fluorescent lamps and fixture types and will automatically run switched, normally-on, or normally-off designated emergency fixtures. The INV series is ideal for applications requiring an emergency source for lighting arrangements that utilize multiple lamp and fixture types. Installation options include surface mount, recessed or T-grid. The series has a self-diagnostics option and comes with a three-year product warranty and seven-year pro-rated battery warranty.