SPECIFICATIONS

Installation and usage method

1. Place the voltage reducer in a ventilated and dry place, and properly secure it.

2. Connect the 24V input terminal to the power supply line, with the red wire connected to the positive pole, the yellow wire connected to the ACC start live wire, and the black wire connected to the negative pole/grounding.

3. Connect the 12V input terminal to the 12V electrical appliance. The red wire is the positive pole, the black wire is connected to the negative pole of the electrical appliance, and the yellow wire is the ACC control line

Input terminal

The red wire is connected to the positive input of the 24V power supply, the black wire is connected to the negative input of the 24V power supply, and the yellow wire is connected to the ACC key wire or can be left unconnected

Output terminal

The red wire is connected to the positive output of the 12V power supply, the black wire is connected to the negative output of the 12V power supply, and the yellow wire is connected to the ACC key wire or can be left unconnected

Main Applications：

✅ Power supply for car subwoofer, car audio speaker system in 24V truck/bus

✅ Drive 12V car refrigerator, car cooler on 24‑volt trucks and coaches

✅ Vehicle modification for trucks, buses, engineering vehicles, large vans

✅ Power 12V on‑board monitor, reversing camera display

✅ Supply power for 12V LED work lights, vehicle interior lights

✅ Other 12V automotive electronics working on 24V vehicle power system