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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) 120-277Vac, 50/60Hz

Input Rating (bulk)

43 Watts

Output Voltage

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

Output Power

35 Watts (@ .9 leading to .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

.9 leading to .9 lagging

Operating Temp

0° to 50° C


High-temp rechargeable nickel-cadmium


6.5 lbs


UL 924 Listed for US and Canada
Damp Location Rated
CA T20 Appliance Efficiency Database
find the UL Mark on this product

Advantages and Features

Product Advantages

  • High Efficiency Performance meets CA T20 battery charger efficiency standards
  • 120 or 277 Vac output selection simplified using external slide switch interface


  • UL Listed
  • Pure sine wave output
  • Operates incandescent, LED, and 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 60Hz 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
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IIS-35-HE Dimensions: Length - 19.94 in. (Mounting Center - 19.4 in), Width - 2.88 in., Height - 2.75 in.

Length - 19.94 in.

Mounting Center - 19.4 in.

Width - 2.88 in.

Height - 2.75 in.