Iota 3.5W, 120V or 277V Emergency Battery Backup Ballast For T8 and T5 Lamps

SKU: I320 TBTS M20 | Ordering Code: I320 TBTS M20

Prices correct at 12:19 AM, 2/21/2026 and are subject to change

$299.99each

Ballast

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Product Highlights

Ignites one T8/T5 lamp

Product Description–

Iota 3.5W, 120V or 277V Emergency Battery Backup Ballast For T8 and T5 Lamps

I320 TBTS M20 Emergency Ballast ignites:
- 2 foot - 4 foot single and bipin T8 HO and VHO lamps
- 2 foot - 4 foot 14W to 54W T5 lamps

In the event of power failure the ballast switches to the emergency mode and operates one of the existing lamps for 90 minutes
13" x 2.2" x 1.25" reduced profile design is ideal for smaller ballast compartments
AC output for compatibility with low mercury content amalgam lamps
Time Delay feature for compatibility with End-Of-Life 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 test switch and charge indicator accessory kit
For use with switched or unswitched fixtures
Rated for use in damp locations, plenum, and enclosed and gasketed fixtures
5 year manufacturers warranty

Full Specs–

Brand	Iota Engineering, Inc
Model Number	I320 TBTS M20
Energy Used	3.5 Watts
Input Volts	120/277
Initial Lumen Output	1350
Operating Temperature (°F)	32 to 122
Number of Lamps	1
Ballast Type	Emergency

Battery	24 Hour Recharge
Length (in)	13
Width (in)	2.2
Height (in)	1.25
Manufacturer Warranty	5 year limited
Ballast Lamp Type	T8/T5
Damp Location	Yes