The IIS 250 HE DR NOBAT 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 IOTA IIS 250 HE DR will supply 250 watts of emergency power from the IIS 125/250 BAT Batteries which must be purchased separately. The IOTA IIS 250 HE DR works in conjunction with incandescent, LED, and fluorescent lamp and fixture types and will automatically run switched, normally-on, or normally-off designated emergency fixtures. The IIS 250 HE DR is ideal for applications requiring an emergency source for lighting arrangements that utilize multiple lamp and fixture types. The IOTA IIS 250 HE DR features increased inrush capability to prevent shut-down caused by inrush currents, allowing operation of loads at the full rated output of the unit with no need for circuit de-rating. The IIS 250 HE DR is designed for high-efficiency performance and is certified in the CA Title 20 Appliance Efficiency Database. The IIS 250 HE DR also features dimming relay leads to accommodate 0-10V dimming applications.