What is the function of a dash cam voltage reducer cable?
2 Answers
The function of a dash cam voltage reducer cable is to reduce voltage. Since a car battery typically provides 12V, while a dash cam usually requires 5V, using a voltage reducer cable to connect the dash cam can prevent damage caused by excessive voltage from the car, ensuring normal operation. Below are some precautions for installing a dash cam: Securing the dash cam body: When installing the dash cam, it must be firmly fixed, either integrated with the windshield or the rearview mirror to prevent vibration. Choosing the right installation angle: Ensure it does not obstruct the view. Generally, dash cams are installed using a suction cup mount on the front windshield, but if the body is too large, it may affect visibility. Installing the dash cam near the rearview mirror is ideal for optimal recording angles while remaining discreet and not obstructing the view. Following the principle of proximity for wiring: After determining the installation position of the dash cam, route the cable from above the rearview mirror along the edge of the car roof, down the passenger-side A-pillar, under the glove box, and into the center console to connect to the cigarette lighter.
The voltage reducer is truly a great companion for my dash cam. It protects the camera from being damaged by the high voltage in the car. When the engine starts, the battery voltage fluctuates, rising from around 12 volts to approximately 14 volts, while the dash cam's internal circuitry is only designed to handle 5 volts. The voltage reducer acts like a smart regulator, safely stepping down the high voltage to an appropriate range to prevent overvoltage damage to components. Without a voltage reducer, the dash cam might smoke and burn out immediately upon connection—I once saw a friend's device get fried, costing him several hundred yuan. Moreover, it ensures more stable operation of the dash cam, preventing power interruptions and loss of crucial footage during bumpy rides. With this device, I feel much more at ease while driving, as the dash cam can operate around the clock, providing evidence in case of accidents and enhancing road safety. Installation is also straightforward—it's a DIY job that doesn’t occupy the cigarette lighter port.
