ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
MRI LED lights dimmer control replacement - wow!
by Potseal. 01/18/18 10:41 PM
Video: Inventor of the GFCI self-testing shocks
by Bill Addiss. 01/17/18 11:11 PM
FPE in Germany
by HotLine1. 01/17/18 07:07 PM
VDE 0100 to introduce AFCIs
by LongRunner. 01/17/18 10:32 AM
Fujifilm Recalls Power Adapter Wall Plugs
by Admin. 01/16/18 07:04 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 10 guests, and 14 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
A CFL bulb that puts out WHITE light #29132
09/09/03 10:26 AM
09/09/03 10:26 AM
S
SvenNYC  Offline OP
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]

Work Gear for Electricians and the Trades
Re: A CFL bulb that puts out WHITE light #29133
09/09/03 08:09 PM
09/09/03 08:09 PM
B
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.

Re: A CFL bulb that puts out WHITE light #29134
09/09/03 08:27 PM
09/09/03 08:27 PM
F
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?)

Re: A CFL bulb that puts out WHITE light #29135
09/09/03 08:57 PM
09/09/03 08:57 PM
T
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..?

Re: A CFL bulb that puts out WHITE light #29136
09/10/03 02:49 AM
09/10/03 02:49 AM
Trumpy  Offline

Member
Joined: Jul 2002
Posts: 8,231
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/

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

Broom Pusher and
Member
Joined: Oct 2000
Posts: 2,708
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!

Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Theelectrikid
Theelectrikid
Levittown, PA
Posts: 810
Joined: April 2004
Show All Member Profiles 
Top Posters(30 Days)
Admin 20
sparky 18
Potseal 14
Popular Topics(Views)
243,546 Are you busy
180,351 Re: Forum
170,832 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.022s Queries: 14 (0.004s) Memory: 0.9777 MB (Peak: 1.1237 MB) Zlib enabled. Server Time: 2018-01-19 09:56:32 UTC