Is Adding a Light Enhancer Effective for Cars?
2 Answers
Adding a light enhancer to a car is effective. Here are the relevant details: 1. The principle of a light enhancer is to stabilize the voltage at 14.2V, essentially functioning as a DC-to-DC module. The light enhancer provides a soft start for the voltage, which offers some protection to the bulbs. However, it may reduce the bulb's lifespan by about 15% in the long run, though this impact is negligible. 2. A car's light enhancer system includes the generator, high/low beam switch, headlights, high beam relay, and low beam relay. The two relays are connected in series and installed near the generator or headlights at the front of the car, with their series connection point grounded. One end of the high beam relay is connected to the high beam control output of the high/low beam switch, and its normally open contact is connected between the generator and the high beam filaments of the two headlights. Similarly, one end of the low beam relay is connected to the low beam control output of the high/low beam switch, and its normally open contact is connected between the generator and the low beam filaments of the two headlights. This setup shortens the current transmission distance from the generator to the headlights, thereby reducing line voltage drop, increasing the headlight illumination intensity, and enhancing nighttime driving safety.
Honestly, the headlight enhancer makes a noticeable difference for older cars. After installing it on my decade-old car, the headlights changed from dim yellow to a normal white light, significantly improving nighttime visibility. It's essentially a small relay that bypasses the aging original wiring to draw power directly from the battery, providing the bulbs with more stable voltage. However, if your car is only two or three years old, you might not feel such a dramatic effect since the wiring in newer cars hasn’t degraded much. Installation is super simple—I did it myself in about half an hour, and it only cost around a hundred yuan. Just be sure to match the power rating and not exceed the bulb’s wattage limit, or you risk burning out the filament.
