If you want to reduce the voltage to 12V with 24V on-board voltage (e.g. truck, bus, boat or motorhome), the Bolwins J40C voltage converter is the right solution. It converts DC 24V to DC 12V and delivers up to 10A with a maximum power of 120W. Suitable for all 12V devices with a consumption of up to 10A or 120W. Not suitable for consumers with higher power requirements. The inverter is designed for wired operation via the cigarette lighter socket and offers protective functions so that carelessness does not immediately damage the device. If you purchase more than 10 pieces you will receive an additional discount. Please contact us in time for further information. We try our best to ensure our customers are completely satisfied. If you have any problem, please contact us in time. We are.