RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×

Thread Tools Display Modes
Old 03-14-2011, 04:56 PM   #1
Junior Member
Join Date: Mar 2011
Posts: 6
Post Repairing Sunray Fluorescent RV Lighting

I'm sharing this post for the benefit of anyone with a faulty Sunray flourescent light fixture. The Sunray units from STP Distributing are fitted standard to many FR products.

These twelve volt fluoro units don't use replacable starters and ballasts like traditional home fluoro units, instead they have an electronic circuit board that connects inside the light between the 12v trailer supply and the batten holders.

It is very common for these ballasts to stop working. Generally they overheat and one or more components on the circuit board burn out, resulting in the unit not lighting up. In the Sunray units there are two power diodes that commonly fail as they are under-rated for the wattage they have to drop.

When this happened to mine, my first instrinct was to simply replace the whole unit, but I was surprised to see how expensive these units were new, so I went looking for other options.

I came across a web site by SunrayTS that sells these electronic circuit boards as direct replacement parts for about $22 each (well under half the price of a new unit).

The web address is www.sunrayts.com

Replacement of the circuit board takes about 45 minutes and requires drilling out some soft aluminum rivets. The job is not for beginners, but is certainly a handyman (handyperson)-level task. There are instructions and diagrams on the sunrayts site.

I've noticed that the replacement boards have a new heat sink assembly that should prevent the failures seen on the original boards.

If anyone would like detailed repair instructions, I'd be happy to post...
2006 Ford 350 King Ranch
2005 Sierra Fifth Wheel 34'
LloydC is offline   Reply With Quote
Old 03-15-2011, 06:51 AM   #2
Site Team - Lou
Herk7769's Avatar
Join Date: Oct 2009
Location: South Eastern PA
Posts: 22,865
Great post Lloyd. Thanks.
Lou, Laura, & Freya the wonder dog
2008 GMC Sierra 3000HD Crewcab SB Allison Duramax
2019 Flagstaff 8529FLS - Pullrite 3300
Herk7769 is offline   Reply With Quote
Old 03-15-2011, 08:05 AM   #3
Wanna Be Camper
SaskCampers's Avatar
Join Date: Mar 2010
Location: Moose Jaw, Saskatchewan
Posts: 2,420
Great info.
SaskCampers is offline   Reply With Quote

Thread Tools
Display Modes

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

» Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.

All times are GMT -5. The time now is 10:12 AM.