Waterproof DC 12V/24V to 5V 3-40A Step-Down Power Supply Converter Regulator Mazda Car Throttle Bodies 4: The hole is smooth

4: The hole is smooth

1 * Wing Spoiler Trim

5x Mini Red LED 3-Digital Display Voltmeter

Diameter:About 3"(73mm)

Waterproof DC 12V/24V to 5V 3-40A Step-Down Power Supply Converter Regulator Mazda Car Throttle Bodies 4: The hole is smoothWaterProof 12V 24V to 5V 3 40A 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 is