Voltage Regulators Custom Work, Electric, Wiring Add comments Oct 112015 Standby regulator. Still need to wire the voltage light between #3 and #5 posts and mount it on the panel. Main alternator regulator. Same issue here with the lamp. Bought a new board for my hit list. I may turn the hangar into a sauna. Leave a Reply Cancel replyYou must be logged in to post a comment.