Flourescent light wiring

Thread Starter

CTRL+X

Joined Jul 1, 2009
26
I'm building a light board fixture as per the attached schematic. The ballast I am using is a Sylvania mb2x20/120ph/tp. I have it hooked up exactly as the schematic shows, however when I plug it in, I only get dim glows from either end of each bulb. At first I thought maybe I needed a starter, however this ballast is a Trigger Start, which should eliminate the need for a starter. Any suggestions on what may be wrong?

I don't have it grounded however, as it is mounted on a plexiglass sheet. Could this be the problem? Maybe the ballast is bad?
 

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Audioguru

Joined Dec 20, 2007
11,251
Fluorescent tubes are usually mounted very close to the grounded metal fixture.
They need the nearby ground along their length to start with a rapid-start ballast.
 

Thread Starter

CTRL+X

Joined Jul 1, 2009
26
Well, ended up returning the ballest and getting a dual tube fixture, taking it apart and remounting it per my needs. Works great.

Will post pictures of project once it is complete.

I do think the issue with the previous one was grounding, since it wasn't mounted to a metal grounded fixture.
 
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