From: "John Beamish" 

Here the labelling is "warm" and "cool" (with some
actually not having a label at all!).

I've messed about with various combinations (there are four fixtures in the
finished basement cum office) and now have 3 warm and 1 cool.  The
"Warm" ones I have in the office dungeon are, to my perception,
too yellow while the "cool" one that I also have running is a
stark white.  I've also played with different combinations of
"watts", too.  I still haven't got quite what I want but it
works.

I don't have a lux meter (plase bring yours when you, Gill and the kids
finally visit!) so I don't know if they have a warm up issue or not.  I'd
not be surprised if they do -- but the change, if it occurs, is slow enough
that it isn't perceptible to me.

Look at item "F" at the bottom of the page.
http://www.orientationsnova.com/boutique/index.php?language=en



On Fri, 02 Feb 2007 03:52:52 -0500, Don Hills
 wrote:

> In article
> ,
> "John Beamish"  wrote:
>>
>> My biggest beef is that I want full spectrum in my basement office ...
>> but
>> the bulb price for full spectrum compacts is obscene.
>
> The 2 common CFLs available here are "warm white" and
"daylight". Same
> price. The "warm white" is surprisingly close to incandescent in
> spectrum,
> and the "daylight" really is like daylight. (Actually, like indirect
> daylight, such as would enter through a window shaded from direct sun.)
> I have a couple of big (45W) daylight CFLs in my study, and when I turn
> them
> on during the day the room just gets brighter without the colour balance
> changing.
>
> CFLs do have a few problems.
> The first is that they take 5 minutes or so to reach full brilliance. The
> ones in my study start at about 1/3 of full brilliance and work up. (I
> measured with a lux meter.) As such, they aren't as suitable as
> incandescent
> for positions where the lag is a problem and where they're turned off
> and on
> often such as bathrooms, makeup mirrors, kitchen work lights etc. They're
> good for hallways, stairwells and porch lights etc.
>
> The other problem with some brands is life. I've had several relatively
> early complete failures, but the usual problem is that they become too
> dim
> to be useful at start-up, though are OK once warmed up. This reinforces
> the
> recommendation to use them for "long period" use, not on/off use. The
> extreme example is the GE brand bulb in my front porch, it's 4 or 5 years
> old now. On cold evenings it starts as a dull pink that you can hardly
> see
> by and gradually brightens to normal.
>
> One other odd effect with some: We have one in the main lamp in the
> bedroom,
> which is usually on all evening. For a few minutes after switch-on, the
> LED
> in the infra-red remote repeater glows constantly and it's
"blind" to the
> remotes. The inverter in the lamp is obviously operating around 38 KHz
> (standard IR remote frequency) during warm-up.
>

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