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   I-320-HE Emergency Ballast for Fluorescent and LED Retrofit Emergency Ballast Specification Sheet in PDF format Installation Manual in PDF format Wiring Diagrams
IOTA I-320-HE Emergency Ballast Lumen Output
1350 Lumens

Lamps Operated
2'-4' HO and VHO T8, 2'-4' 14W-54W T5 and 18W-42W 4-Pin Compact Lamps

For use with select LED retrofit tube lamps.
See the LED Retrofit Selection Tool for details.

Emergency Operation
90 Minutes

Product Description

The I-320-HE from IOTA Engineering is a UL Listed emergency ballast that allows the same fixture to be used for both normal and emergency operation. In the event of a power failure, the I-320-HE switches to the emergency mode and operates one of the existing lamps for 90 minutes. The unit contains a battery, charger, and inverter circuit in a single can, and can be mounted in the wireway or on top of the fixture. The I-320-HE can be used with most 2′-4′ T8 lamps and 2′-4′ 14W to 54W T5 lamps with an initial output of up to 1350 lumens for one lamp. The I-320-HE utilizes AC output to ensure compatibility with new lamp technologies, and features lamp selector leads for optimizing light output for the designated lamp type. The I-320-HE is suitable for use in damp locations and in enclosed and gasketed fixtures. The shallow profile design is ideal for use in fixtures where ballast compartment space is limited. The I-320-HE features high-efficiency performance to help meet CEC Title 20 efficiency requirements.

Product Description

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

Input Wattage: 3.7 Watts

Lamps Operated:* Most 2'-4' single, bipin T8 HO and VHO
and 2'-4' 14W to 54W T5 fluorescent lamps

Power Factor: ≥ 0.9 at 120 VAC**

Surge Protection: Meets ANSI/IEEE C62.41.2-2002

Emergency Operation:* (1) 2'-4' 90 minutes

Initial Illumination: (1) lamp up to 1350 lumens

Operating Temp: 0° to 55° C


24 Hour Recharge
7-10 Year Life Expectancy


3.0 lbs
(-A) 3.5 lbs


UL Listed
California Energy Commission (CEC)
UL Listed MarkCEC Compliant BC Circle Mark
*Refer to Lumen Reference Chart and LED Retrofit Reference Chart for list of compatible lamps
**PF ≥ 0.85 at 277VAC

  • High Efficiency Performance meets CEC battery charger efficiency standards (CEC-400-2014-009-CMF)

  • Reduced Profile design is ideal for shallow ballast compartments

  • AC Output for compatibility with low mercury content amalgam lamps

  • Time Delay feature for compatibility with End-of-Lamp circuitry

  • Open Circuit Isolation protects unit when load is absent.


  • Will cold start and operate all specified lamps

  • Long life high temperature recyclable Ni-Cad battery

  • Galvanized steel case

  • Includes single-piece TBTS test switch/charge indicator

  • For use with switched and unswitched fixtures

  • Rated for use in Plenum, Damp Location, Recessed Type IC, and Enclosed and Gasketed Fixtures.

  • 5-year warranty. See Warranty Page for details.

  • Lamp selector leads optimize light output for desired lamp type

  • Meets or exceeds all NEC, IBC, and Life Safety Code Emergency Lighting Requirements

  • RoHS Compliant


Lamp 1 Lamp
F17 T8 630
F25 T8 1200
F28 T8 1215
F32 T8 1350
14W T5 745
21W T5 1150
24W T5 815
28W T5 1200
39W T5 1315
54W T5 1150
13W PL CF 4-Pin 565
18W PL CF Quad 4-Pin 665
26W PL CF Quad 4-Pin 915
32W PL CF Quad 4-Pin 1115
42W PL CF Quad 4-Pin 1030


Standard Version
16.35" x 2.3" x 1.2" (Mounting Center: 16.0 x 1.57")

Emergency Ballast Dimensions

Dual-Flex (-A) Version
16.35" x 2.3" x 1.2" (Mounting Center: 16.0 x 1.57")

Emergency Ballast Dimensions

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