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I have a 2 bulb light fixture with Resi-tronic flourescent lamp electronic ballast 2003062 have .85A with a yellow, white & black wire coming out of one side & 2 blue,2 red, a brown and a gray wire coming out of the other side. The replacement ballast that I am told will work have completely different wire arrangements & I don’t see how the wiring can be modified to work. Can you please provide an appropriate replacement ballast or a description of how to wire a different type ballast? Thank you. update

arch, according to your images, this is a standard T8 2 lamp ballast. Something like this or this one should work. Any major hardware store should also carry it. Yes, the wiring will slightly change. To show you how to connect the new balance, you will have to also give us a few pictures of the light with the current wires.

Oldturkey is right - The Resitronic 2003062 has been discontinued - it has some really awkward wiring that can be easily rewired to accommodate a standard ballast without changing the sockets depending on the fluorescent tubes you are operating: F32T8 - Resitronic 2003062 F32T8 Replacement F40T12 or F34T12 - Resitronic 2003062 F40T12 and F34T12 Replacement Of course the better option is to convert your 4 ft. F32T8, F40T12, F34T12 fluorescent tubes to LED by-pass tubes that eliminate the ballast altogether and typically have a payback in a few months.