10-20A Waterproof DC/DC Converter Power Supply Regulator 30-120V Step Down To 12V USAstock Power assist mode and electric

Power assist mode and electric mode

- 1 x Upgraded donut antenna

RS4 is not fit

842-12255 FJ660 35310-37150 9260930004

10-20A Waterproof DC/DC Converter Power Supply Regulator 30-120V Step Down To 12V USAstock Power assist mode and electricWaterProof 30 120V to 12V 10 20A Step Down DC DC Power Converter Regulator Feature: 1: Made of high quality materials, long service life, long term stable and reliable. 2: With overcurrent, overvoltage, overtemperature and short circuit protection, reliable multi protection design to enhance your using safety. 3: Waterproof, shockproof Design,good heat dissipation, easy to install 4: This product does not have the function of charging the battery, it