Why is the right low beam not as bright as the left?

[SanFelicity]

The reason why the right low beam is not as bright as the left is due to abnormal grounding of the right bulb, aging of the bulb filament, unstable battery output, etc. The following is a detailed explanation of the causes of this fault: Abnormal grounding of the right bulb: When the grounding is abnormal, the entire circuit cannot form a normal loop, resulting in insufficient voltage and current, which causes the bulb to be less bright and dim. The circuit needs to be readjusted. Aging of the bulb filament: Both the bulb and filament have a certain service life. Dimming of the bulb is a sign that the lifespan is nearing its end and the bulb is aging. Simply replace the bulb with a new one at a repair facility. Unstable battery output: Unstable battery output can also cause this phenomenon, but the possibility is small. Just check the battery voltage.