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#29132 - 09/09/03 11:26 AM A CFL bulb that puts out WHITE light  
SvenNYC  Offline
Member
Joined: Aug 2002
Posts: 1,691
New York City
I've been looking for a screw-in CFL bulb that will put out WHITE light. Not pinkish...and certainly not that putrid blue that I seem to run across so much.

But it seems like all the ones I see in stores put out either a blue-ish tinted light or a slightly pink light (not as harsh on the eys as the blue) even after I let the lamp warm up for half an hour.

The NYCTA uses what looks like CFLs in their train tunnels (they also use the metal halide lamps in some areas but those are teardrop shaped and blueish) that do seem to put out a white light. It's sort of shaped like half a medicine capsule.

I seem to remember that's what they all looked like when CFLs were introduced, but now they come in all sorts of shapes (corkscrews, litle U tubes, globes, etc. etc.).

Has anyone shifted to screw-in CFL's in their fixtures and can recommend a good brand?

I've seen the circline tubes used in these adapter brackets that screw into a lightbulb socket...but those are EXPENSIVE compared to a standard bulb-sized CFL; althoug they seem to put out a better light.

Thanks!! [Linked Image] [Linked Image]


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#29133 - 09/09/03 09:09 PM Re: A CFL bulb that puts out WHITE light  
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...
It may be that part of the problem is producers playing games to get EPA efficiency ratings as high as possible. 'Cooler' phosphors typically yield higher lumens/watt numbers compared to 'warmer' phosphors. I don't mind the color so much as some of the earlier {still working/not burned out yet} CFLs that have ~1 second starting delay.


#29134 - 09/09/03 09:27 PM Re: A CFL bulb that puts out WHITE light  
frenchelectrican  Offline
Member
Joined: Feb 2003
Posts: 939
Wi/ Paris France { France for ...
ok as far for CFL they do come few diffrent color variation like 28K ,31K, 41K and i belive they do have something like 50K but kinda rare most common is 28K or 41K but 31K is between the two and seems sell quite a few of them too but bear in mind the manfactures have somekind of tourance ( variation) between bubs but really want white just read the label on the CFL and it will tell the "colour temp"

merci marc


Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)


#29135 - 09/09/03 09:57 PM Re: A CFL bulb that puts out WHITE light  
ThinkGood  Offline
Member
Joined: Aug 2002
Posts: 1,081
Milwaukee, WI
Sven:
Have you looked around in the orange store? They used to have "outdoor light" CFLs, I don't recall the brand, but the light is supposedly similar to daylight.

Maybe they stopped carrying them..?


#29136 - 09/10/03 03:49 AM Re: A CFL bulb that puts out WHITE light  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,211
SI,New Zealand
Sven,
I tend to use Philips lights and fluorescent tubes over here, as I have found them to be really reliable and they seem to have an endless range of colour temperatures available.
Try this site:
http://www.lighting.philips.com/nam/product_database/


Let's face it, these days if you're not young, you're old - Red Green grin

#29137 - 09/10/03 04:42 AM Re: A CFL bulb that puts out WHITE light  
Scott35  Offline

Broom Pusher and
Member
Joined: Oct 2000
Posts: 2,707
Anaheim, CA. USA
Have installed CFLs with Color Temperatures of 3500K and 4100K - seen a few 5300K (I believe).
These were not the type with the incorporate Ballast and Medium Base Screwshell connection - such as the common end user replacements for 120 VAC medium based Incandescent Lamps. They are CFLs used within a Fixture, which houses the Ballast (typical 2 and 4 pin Lamps).

A Metal Halide "Color Corrected" type Lamp gives off nearly target white light.

Also, Fluorescent Lamps in the "SPX" categories will produce a more "Tolerable" light color output.

Also, the age of a Lamp (from usage) affects the output color, so expect the color to shift towards Orange-ish (warmer / lower "K" value) as Lamp ages.

Check out the site which Trumpy linked, and you will find some options.

Lastly, Marc (frenchelectrician) has made some very good points towards available colors, plus variables between Manufacturers.

Scott35


Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!


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