Yes and No, the power source in a car or boat will not directly drive our LED spotlights. Currently all of our LED spotlights require 120Vac drivers to supply the regulated 24Vdc, 350CC, 500CC or 700CC power source for the LEDs and the battery in car or boat is 12Vdc source, so it will not work if you don’t have some kind interface. You can use an electronics safe inverter which converts 12Vdc to 120Vac and then use our drivers.