2x24W or 2x39W T5 High-Output Ballast

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$26.99 $26.99

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Replacement ballast for ATI T5 lighting fixtures. If a ballast goes bad, it is best to wait to disassemble and remove the old one until the new ballast is there and then swapping the ballast out will just take a few minutes.


ATI replacement ballast for 2x24W or 2x39W T5 Fixtures. Ballast is not dimmable.

The ballasts can be used for other fixtures and retrofit kits. Wiring diagram is printed directly on the ballast.


Trouble Shooting

More Information
Lighting Type Fluorescent
Fluorescent Bulb Wattage 24 watt, 39 watt
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Product Questions

Does it require shunted or no-shunted sockets?
Question by: Alex on May 24, 2016, 3:21 PM
Greta question!
We have been informed by ATI these will work with both.
Answer by: Connor on Jun 2, 2016, 3:10 PM
What is the model # of the 2x39w ballast. Trying to research actual ballast specs for a retrofit
Question by: Brandon Narde on Apr 26, 2016, 6:04 PM
Great question!
The Model number is:
SI 218-40 UNI
Answer by: Connor on Apr 27, 2016, 3:03 PM
Will this Power two, T5 31w HO fluorescent bulbs
Question by: Mike The Reefer on Mar 28, 2016, 2:49 PM
Great question!
This will power them on however most likely will not run them at HO. It is tough to say exactly how much power they will put out. Feel free to let us know if you have any further questions!
Answer by: Connor on Mar 29, 2016, 2:32 PM