Sylvia Else wrote:
On 21/09/2011 2:34 AM, Wild_Bill wrote:

Only the very early versions of CFLs I purchased were slow to reach
full output.. maybe I've just been lucky, but the ones I use every
day come on quickly.

My experience has been that they're fine when new, but as they age,
they take longer and longer to reach, or even approach, full
brightness.
I had been under the impression from previous discussion that this was
attributed to the deteriorating ESR in cheap capacitors, but that view
doesn't seem to be getting any support here.

**Because it's ********. I have a lot of CFLs around the place. I use a
light meter to monitor one lamp, in order to guage it's approximate life.
During the Winter, it takes a long time (about 1 minute) to reach full
brightness. In Summer, full brightness is reached in a few seconds. This has
not altered significantly in 6 years.

FWIW: The lamp is a 23 Watt Philips type. It is operated around 1.5 hours
per day and there has been a 5% fall in Lux over the past 6 years.


--
Trevor Wilson
www.rageaudio.com.au