Built-in LED lights verify lighting functions and let you know if power is being received from the tow vehicle. Separate LED lights will illuminate for each trailer function. The rotatable puck allows for multiple orientations to match the vehicle connector and keep the LED's always facing up. Product Features:Quick/Easy troubleshootingLEDs verify wiring continuityImpact and corrosion resistantRotatable puck allows for any orientation to keep LEDs face upRear grommet/ strain reliefs for weatherproofingUsed on large utility trailers
