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IIS-35-HE Product Image

Load Capability

35 watts

Full Light Output For



The IOTA IIS-35-HE is a UL Listed pure sine wave output inverter designed to provide power to the designated emergency lighting fixture. In a power loss situation, the IOTA IIS-35-HE will supply 120 or 277 VAC power to operate up to a 35W total connected load for not less than 90 minutes. The IOTA IIS-35-HE works in conjunction with LED, fluorescent, and incandescent lamp and fixture types and will automatically run switched, normally-on, or normally-off designated emergency fixtures. The IIS-35-HE is ideal for applications requiring an emergency source in elevated ceilings, for high output luminaires, and lamp types utilizing Edison Screw (ES) designs. The IIS-35-HE features high-efficiency performance to help meet CEC Title 20 efficiency requirements. The unit utilizes a long-life nickel-cadmium battery and is covered under IOTA’s five-year warranty.


Input Voltage

(Universal) 120-277 Vac, 50/60 Hz

Input Rating (bulk)

43 Watts

Output Voltage

(Slide switch selectable) 120/277 Vac, 60 Hz

Output Power

35 Watts (@ 0.9 leading to 0.9 lagging PF)

Lamps Operated

LED (per NEMA 410), Fluorescent, Incandescent

Surge Protection

Meets ANSI/IEEE C62.41.2-2002

Emergency Operation

90 minutes

Load Power Factor Range

0.9 leading to 0.9 lagging

Operating Temp

0° to 50° C


High-temp rechargeable nickel-cadmium


6.5 lbs.


UL 924 Listed
Damp Location Rated
RoHS Compliant
California Energy Commission (CEC)
UL Listed Meets California Energy Commission (CEC) energy efficiency requirements


  • UL Listed
  • Pure sine wave output
  • Operates LED, incandescent, fluorescent fixtures, fixtures with dimmable ballasts, and screw-base lamp types
  • For use with switched or unswitched fixtures
  • Universal 120-277 Vac input with 120/277 Vac 60 Hz slide switch selectable output
  • Includes single-piece test switch and charge indicator accessory
  • Recyclable long-life high temperature nickel-cadmium battery
  • Line voltage allows for remote mounting of emergency fixtures at distances up to 250 feet
  • Low Battery Voltage Disconnect (LVD)
  • Rated for use in damp locations
  • Meets or exceeds all National Electrical Code and Life Safety Code Emergency Lighting Requirements
  • Galvanized steel enclosure with 36" conduit for wiring connections to the fixture
  • RoHS Compliant
  • Five-Year Warranty

Sample Specification

Emergency lighting shall be provided by micro-inverter equipment designed to operate a designated incandescent, fluorescent or LED fixture on emergency power at the full nominal lumen rating during the full 90-minute emergency discharge cycle. System output will be rated at 35 watts for 90 minutes. The system’s voltage rating shall be field selectable 120 or 277 VAC input and 120 or 277 VAC selectable output via two-position slide switch.

The micro-inverter unit shall allow for the connected emergency fixture to be normally on, normally off, switched or dimmed without affecting lamp operation during a power failure. Upon utility power loss, the micro-inverter unit shall deliver 100% of its full rated output regardless of the local switch or dimmer position, and will provide power to the emergency fixture at distances of up to 250 feet.

The housing shall be designed for installation onto or adjacent to the fixture and manufactured using a galvanized steel enclosure.

The unit’s electronics shall include inverter circuitry with a fully automatic battery charging circuit shall monitor and adjust the input power consumption for compliance with CEC efficiency standards. The unit shall also include low battery voltage disconnect, short circuit and brownout protection as standard. The unit shall utilize a rechargeable and replaceable high-temperature nickel-cadmium battery with a 10-year design life. The inverter system shall be UL 924 Listed and labeled for use in the United States and Canada. The unit shall be covered under a full 5-year warranty on the electronics and battery. It shall meet or exceed the requirements of UL 924, NFPA 101 Life Safety Code, NFPA 70 National Electrical Code, NEMA 410, OSHA and State and Local codes.

The micro-inverter unit shall be IOTA model IIS-35-HE.


IIS-35-HE Dimensions