The trailer connector module is used on vehicles whose lighting electronics cannot withstand the additional load from the trailer lights (e.g. in the case of a 5W lamp, the load drops from 500mA to 1mA, i.e. 500 times).

The product is universal and can be used for all car brands.

WH1DB-PRO-G7 is a trailer connector module, which includes a 7-position connector, relay module, wiring and everything necessary for installation.

Miniature relay module with spacer (not hermetic)
Automatic detection of connected trailer
Control of multiple lights with one filament
Support for PWM signals
Works with incandescent bulbs rather than LED bulbs
Supports LED bulbs on the trailer as well