upgrade to T8


Old 09-02-06, 06:08 PM
Thread Starter
Join Date: Aug 2006
Posts: 19
Received 0 Votes on 0 Posts
upgrade to T8

I want to upgrade some fixtures from T12 to T8. 2 F40T12 bulbs. The fixture has 2 yellow, 2 red, and 2 blue. The ballasts that seem to be available in the stores have 2 blues and a red . Will this work?
Sponsored Links
Old 09-02-06, 07:48 PM
nap's Avatar
nap is offline
New Member
Join Date: May 2006
Location: north
Posts: 4,163
Received 1 Vote on 1 Post
Yes, with some minor rewiring. The diagram is on the ballast.

If I remember correctly, one blue will go to both terminal on one lampholder, the other blue to the other lampholder on the same end of the fixture (other bulb) and the red to all 4 terminal points on the other end of the fixture.

Hopefully if I am wrong, one of the other guys will correct me.

You will be able to reuse the sockets with no problem.
Old 09-03-06, 07:47 AM
Join Date: Apr 2006
Location: New Bern, NC
Posts: 1,623
Received 0 Votes on 0 Posts
No corrections needed nap. Ballast wiring can be slightly different from mfg to mfg. Just follow the drawing on the ballast. What you discribed is the most common wiring diagram.

On a side note, most of the time when a ballast has two wires of the same color or marking, they are actually the same electrical point attached together inside the ballast.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: