Whelen 500 TIR ballast type

Clarence H

Member
May 20, 2010
1,546
USA Twin Cities Minnesota
I got a couple of 500 series tir ballast type leds, and I was wondering, do they need anything else to work? They have 3 wires, Red. Black, and Green. The rear says TIR ballast flasher W/sync.


Clarence
 

Zapp Brannigan

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May 23, 2010
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