standard system - for typical passenger cars suitable to the 13-pin plug of the trailer (used 8-pins) trailer reverse lights control LED/bulb lamps support, PWM control trailer LED/bulb lamps support recognition of PWM steering of car lamps (analogue method) directly steering of fog-light of trailer
List price
33.00 EUR (excl. VAT)

WH1R module is basic controller for steering of trailer lights. Module "copy" signals of lights from rear lamps of car to the trailer socket - including reverse light (REV). Application this module is simple (1:1) control of lamps on cargo trailers or on bike rack.


Kit WH1R-G8 is most economically set which include full and complete cable harnesses, socket and accesories, which working with all lights (include REV light). Length of cables is enoughtly for "typical" installation.

WH1x modules properly working with lamps based on filament bulb or on LED in car. More over - also properly working with PWM steering of lamps in car (when by one wire are controlled two lights - eg. "STOP light" and "tail light" - see quick-guide).


WH1R-G8 kit isn't recommended for installations where is required powering in socket (like for eg. caravans). In this case (in view of additional functionalities) should be used modules MP4/5-DS series or digital modules: WH2S-G13/WH3S-G13.


Product requires to be installed by specialized workshop - read here.

  • Product's EAN code: 5907662621152
Kit contents
  • Main control unit 1 pc
  • Integrated wire harness (all-in-1-plug) 1 pc
  • Socket G13 1 pc
  • Mounting set 1 set
  • Screw set 1 set
  • Connections diagram 1 pc
Module main features
Current load inputs
≤2 mA
LED lights and single filament bulbs support (car)
Working with cars which use pulse width modulation (PWM) for powering lamps
LED lights and filament bulbs support(trailer)
Ability to control of park sensors module in car
Trailer reverse light control
Permanent power supply to trailer socket
Trailer battery charging circuit
Car rear fog-lights control modes
Trailer fog lights control modes
Trailer fog light sequential(independent) control
Features of electric cable harness
Length of power harness
5,0 m
Length of cable harness to the socket
1,7 m
Length of input signals cable harness
L=1,0 R=3,0 m
Technical data
Power supply voltage
10-18 V
Position lights output power, max
(each of sides) 3 x 5 W
Stop lights output power, max
3 x 21 W
Turn signal output power, max
(each of sides) 21+10 W
Fog-light output power, max
21 W
Reverse lights output power, max
21 W
Kit equipment
Complete bundle of towbar with installation accessories