13.5v Auto Voltage sensing controller ideal for dual battery to control relay LED LIGHT General 12V applications

General 12V applications

Diameter: 3

Here we offer is a PX15D LED Globe

Assorted insulated ring (eye) terminals

13.5v Auto Voltage sensing controller ideal for dual battery to control relay LED LIGHT General 12V applicationsHere 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