Greetings to DIY community,

That's my first DIY experience, and I literally have zero experience with electricity. I would appreciate any advice if I am missing or doing something wrong here.

I am trying to wire a Philips TUV 55W PLL lamp with a WH43-UNV-L ballast according to the Fulham datasheet (diagram. 12). I know that this ballast is discontinued for now, but at least I managed to get it at this time. In addition, I know that this lamp type expects programmed start instead of instant start one.

The documentation states "This ballast case must be grounded".

Let's say I am going to use this type of cord, would attaching "green" wire to the ballast's box would be enough to be "grounded"?

Thank you!


1 Answer 1


Normally the cord attaches to the fixture or to a multiwire splice that connects to the housing and to the ballast if the ballast has a grounding wire or terminal. If the ballast doesn't have a ground wire or terminal the ballast is just grounded to the fixture housing by it's mounting screws.

The ground wire on the cord usually attaches to a designated (green) screw on the fixture frame. If the ballast has no direct ground connection then you can use a blue (for #14 and #16 wire) stake-on fork on the stranded wire from the cord and attach it directly under the ground screw or you can wrap a short piece of solid green or bare #14 wire around the screw and attach it to the cord by a wire connector.

If the ballast has a ground terminal or wire that connection is not adequate to ground the whole fixture by that ground connection. Normally you would connect a short piece of bare or green #12 or #14 wire to the fixture ground screw, then use a wire connector it to the ground wire on the cord and the wire grounding to the ballast.


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