A fluorescent lamp uses fluorescence to produce visible light. An electric current in the gas excites mercury vapor, which produces short-wave ultraviolet light that causes a phosphor coating on the inside of the lamp to glow. Fluorescent lamps require a ballast to regulate the current through the lamp, and a “glow lamp” or starter, which brings us to the topic today. The “glow lamp,” of fluorescent lights. We sometimes receive emails regarding fluorescent light problems such as:
“The circular fluorescent light in the bathroom keeps flashing and does not turn on.”
“From time to time, the light flashes a bit even after the tube was replaced.”
In these cases, there might be a problem with the glow lamp.
If you are having problems, please look for a glow lamp in your light. You may be able to solve them by replacing the starter, or glow lamp. You can find some examples of glow lamps for sale here.
And here is a short video about replacing the glow lamp in fluorescent lights.
Photo by D-Kuru [CC BY-SA 3.0 at], via Wikimedia Commons
Photo by Kiyok [CC BY-SA 3.0], via Wikimedia Commons
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