24v to 12v Semi Plug Light Converter

(0) Write a Review

24v to 12v converter, military to civilian trailer light converter, 24v to 12v, 24v to 12v trailer light converter, trailer light converter cable, trailer converter 24v to 12v, 24 to 12 converter

Adding to cart… The item has been added



• 12 Volts @ 20 Amps (240 watts lighting power)

• Surge Suppression

• Overload Protection

• Automatic Reset

• Water-proof

• Plug & Play (no wire cutting or splicing)


• 3 Lever or Push Button Light Switch

• "Service Drive” and “Park” modes

How It Works

Takes power from the tail light circuit, wire #21, and converts it to 12 volts. That 12 volt power is fed into relays that are triggered by wires# 22-460 and 22-461, the left and right stop/turn circuits. The 12 volts from the power converter and relays are fed to a civilian trailer connector. The tractor versions have additional relays that provide separate turn and stop lighting circuits for semi trailers.

A note about power

The adapter will supply a total of 20 amps (240 watts) for trailer lighting. The standard 12 volt 1157 taillight bulb draws 26 watts for stop/turn and 8 watts for tail. A typical trailer setup of two stop/turn/tail light bulbs (one per side) with running lights on and brakes applied will use 68 watts, leaving 172 watts for marker lights (they tend to be 8 watts or less, so at least enough power for 20 of them). Or a ridiculous number of LED lamps. A load of greater than 240 watts will overload the converter and cause it to shutdown. The converter will auto-reset once the overload is cleared. 

Detail of Standard Versions

Semi Trailer Converter Cable 

The Standard Converter Cable has a standard semi trailer connector mounted in a waterproof box and a 6’ 12 pin NATO style cable that plugs directly into any standard military truck’s trailer socket.


Similar Products