13.5v Auto Voltage sensing controller ideal for dual battery to control relay LED LIGHT all light up for tail

all light up for tail and all go brighter for stop

Total length: L=55cm

Sensor Working Voltage: 2 to 3

Overall Length: 15mm

4mm Centre screw or pop rivet base for cable tie (100pcs)

13.5v Auto Voltage sensing controller ideal for dual battery to control relay LED LIGHT all light up for tailHere we have a 12v Voltage controller. This controller is connected to your main battery and senses when the voltage reaches 13. 5v by your alternator charging, Connect the trigger wire from the controller to activate your Dual battery Relay or solenoid and away you go. Wired as the above way you can then have both your main and auxiliary batteries charging automatically when your vehicle is running and then when your main battery drops below 13. 5v