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Strange behaviour of fluorescent light

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rojash | 17:42 Wed 18th Oct 2006 | Science
3 Answers
At about 4 o'clock this morning I was awoken by a strange pulsating light in the bedroom, and realised that the main room light (one of those "folded up" fluorescent replacements for an ordinary bulb) was gradually lightening and darkening over a period of about 1.5 seconds. It never came to full brightness. Eventually, I switched on the light, and it came on normally, and when I turned it off, it displayed the usual after-glow, which gradually faded, and the pulsating stopped.

Does anyone have any theory as to the explanation?
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this one stuped me i have to say. I really want to know this one.

a thory may be some small carges of elecriity may be being pased through

or mabye when you woke up your eyes where adusting to the light giving the effect of a pulseing light

i would like to see some more suggestions on this one
I'm not too sure of the composition of one of these bulbs, but every fluorescent tube needs a 'ballast' which is additional components to start the bulb up. It appears that this fairly basic circuitry has stored a charge.

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