WH1 module is basic (and simplest) controller for steering of trailer lights. Module "copy" signals of lights from car to socket of the trailer. For G7 socket there are available as "economically" set and as "complete" set.

WH1-G7
WH1 module is basic controller for steering of trailer lights. Module "copy" signals of lights from car to socket of the trailer. Kit WH1-G7 is most economically set which include socket (for connections of trailers plug).
RU: suitable to the 7-pin plug of the trailer подходит для LED и галогенных ламп поддержка LED и галогенных ламп прицепа recognition of PWM steering of car lamps (analogue method) directly steering of fog-light of trailer
WH1-PRO-G7
WH1 module is basic controller for steering of trailer lights. Module "copy" signals of lights from car to socket of the trailer. Kit WH1-PRO-G7 is most economically set which include full and complete cable harnesses, socket and accesories.
RU: suitable to the 7-pin plug of the trailer подходит для LED и галогенных ламп поддержка LED и галогенных ламп прицепа recognition of PWM steering of car lamps (analogue method) directly steering of fog-light of trailer