Why Are My RV Lights Flickering or Dimmering? (RV Tech Answers)

Everyone knows flickering lights are the signal that something’s wrong, whether it’s low voltage or paranormal activity. If your RV ceiling lights are dimming or flickering, then your RV is trying to tell you that it’s sick, something is wrong, and it needs help!

Why Are My RV Ceiling Lights Flickering or Dimming?

RV overhead ceiling recessed can lights
Ceiling lights can be classic symptoms of other RV electrical problems.

Usually, flickering, dimming, or brightening lights are symptomatic of low voltage issues.

  • Incandescent bulbs will usually dim or brighten in response to voltage fluctuations
  • LED lights will typically flicker at a high rate when voltage is too low. 
  • Fluorescent lights are less common in RVs, and flickering is usually caused by faulty ballasts. 

RV ceiling lights run off 12-volt DC electricity, which is supplied by your converter and/or house batteries. The quality of this electrical power can vary, especially the voltage.

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