ULF28 and Ghosts

07GD SFD

Member
May 21, 2010
545
VT
I'm going to be re-wiring my car tomorrow and will be syncing all of my lights using a Whelen ULF28. I've got 2 EPI911 TIR3 lights in my grill, 2 Ghosts on my headliner, and 2 Whelen TIR3s on the B posts.


With the ULF28 flasher, do I need to run the white and black Ghost wires to the flasher's ground? Or can I ground them locally?


Attached is the ULF28 schematic.

ULF28.pdf
 

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  • ULF28.pdf
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C17LVFD

Member
May 21, 2010
1,550
Harrisburg, PA
Based on the schematic... I'd say grounds to the flasher... I haven't used the ULF 28... but my thought is if it gives you a ground for a light... it's for a reason...
 

bigcat

Member
May 20, 2010
641
Hartford County, CT
Yeah I agree. That is a ground side flasher. If you ground your lights locally and run only 12v (+) then your lights will all steady burn.


That flasher is similar to a ground side traffic advisor controller. You could run one 12v (+) to all the lights (take into consideration wire guage) but each light needs it's own ground wire back to the flasher.
 

rwo978

Member
May 21, 2010
5,196
ND, USA
see if you can trade the ulf28 for a ulf44???
 

07GD SFD

Member
May 21, 2010
545
VT
Thanks guys.


I ended up just running power and ground wires for each light. My lighting set up idea changed as the install progressed, but I'm happy with the outcome.
 

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