Does Humidity Affect Fluorescent Lights?
A fluorescent light is a type of gas-discharge bulb that uses electricity and mercury vapor to produce a visible light. According to J.R. Coaton and A.M. Marsden, authors of "Lamps and Lighting," the process within a fluorescent light is complex and easily disrupted by external factors such as high humidity.
According to Junior Energy, fluorescent bulbs use a hermetic seal, which means no humidity will penetrate the bulb itself. This seal is necessary to keep the toxic mercury vapor from leaking out into the environment.
Humidity can cause corrosion of the metal fixtures on the ends of a fluorescent bulb, impeding its ability to transmit electricity. The corrosion is easily avoidable by purchasing a weatherproof fluorescent bulb, as they are resistant to corrosion.
Excess buildup of condensation on the outside of the bulb can cause it to take longer to turn on, write Coaton and Marsden. The temperature difference on the glass negatively affects the delicate process within. Wiping the condensation off the bulb and waiting for five minutes will remedy the problem in most situations. Additionally, purchasing a weatherproof fluorescent bulb will avoid the problem altogether.
- "Lamps and Lighting, Fourth Edition"; J.R. Coaton and A.M. Marsden; 1996
- "High Frequency Flourescent Light Fixture"; Michael A. Schurman; 1994
- Junior Energy: Light Bulb Facts
Serena Styles is a Colorado-based writer who specializes in health, fitness and food. Speaking three languages and working on a fourth, Styles is pursuing a Bachelor's in Linguistics and preparing to travel the world. When Styles isn't writing, she can be found hiking, cooking or working as a certified nutritionist.
- Light image by ladymodem from Fotolia.com