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Main Forums => The Roundtable => Topic started by: Nick1911 on July 16, 2007, 12:07:56 PM

Title: Best CFL?
Post by: Nick1911 on July 16, 2007, 12:07:56 PM
I'm willing to try CFL's again.  I tried it about 5 years ago, and the light quality sucked.  The bulbs had a long startup time, appeared much dimmer then their incandescent "equivalents", and were hell on the eyes.

Recent threads have suggested that the technology is much better now.  So, I'm willing to try this again.  What do you recommend?  I'm looking for good representation across the visible spectrum, low startup time and no buzz or wine sounds.

Phillips?  GE? Sylvania? Other?
Title: Re: Best CFL?
Post by: K Frame on July 16, 2007, 12:18:58 PM
They're evil, and they'll cost you 239,296,969,129,196,221 times MORE than an incandescent bulb...

I like either GE or Phillips. Look for the ones that are marketed was warm white.

Sylvania, ANY Sylvania bulb (incandescent, fluorescent, or halogen) have seriously poor quality control, in my opinion.
Title: Re: Best CFL?
Post by: AJ Dual on July 16, 2007, 12:30:35 PM
Does anyone else remember David Letterman's top ten list as to why the public should buy GE light bulbs, way back when GE bought NBC?

I don't remember them all, but:

#5 We heard somewhere that Sylvania bulbs give off some kind of poison gas&

#4 Same for Westinghouse..

#3 The floursecent tubes make great "Star Wars" swords for the kids!

Title: Re: Best CFL?
Post by: bedlamite on July 16, 2007, 12:56:56 PM
Does anyone else remember David Letterman's top ten list as to why the public should buy GE light bulbs, way back when GE bought NBC?

I don't remember them all, but:

#5 We heard somewhere that Sylvania bulbs give off some kind of poison gas&

#4 Same for Westinghouse..

#3 The floursecent tubes make great "Star Wars" swords for the kids!



http://www.mudslide.net/TopTen/lnwdxtra.html#extra68
Title: Re: Best CFL?
Post by: AJ Dual on July 16, 2007, 03:41:24 PM
That was it! You rock!
Title: Re: Best CFL?
Post by: crt360 on July 17, 2007, 02:41:45 PM

#3 The floursecent tubes make great "Star Wars" swords for the kids!


They were used for that very purpose at my elementary school.  The kids would rescue them from the dumpster and have lightsaber fights out behind the cafeteria.  laugh

Hmmm . . . I wonder if my exposure qualifies me for a government benefit.
Title: Re: Best CFL?
Post by: BrokenPaw on July 19, 2007, 07:00:08 AM
I replaced the exterior flood lights on my house with CFL floods, with the idea that CFLs were supposed to last longer and thus expose me to less chance of Death By Ladder.  But when I turn on the switch, there's a pause just long enough to get me thinking that the bloody things have finally burnt out, and then the begin giving of an anaemic desultory sort of yellowish glow, and then over the course of about 5 minutes they work their way up to "Still pathetically dim, but bright enough to actually see by".  At which point I've likely already concluded whatever business I needed the light for.  So I never actually get the benefit of sufficient brightness.

And in the winter, it's even worse.

Back to evil incandescents next time.  Especially for exterior lights when you live in the woods, instant-on, instantly-bright is a Good Thing.

-BP
Title: Re: Best CFL?
Post by: Manedwolf on July 19, 2007, 07:15:43 AM
Quote
#3 The floursecent tubes make great "Star Wars" swords for the kids!

There was a Darwin Award not long ago where two people tried to re-enact a lightsaber fight by cutting the ends off fluorescent tubes, pouring in some gasoline and lighting it, presumably to make it "light up". The results were predictable, and I think fatal for at least one of them.

Title: Re: Best CFL?
Post by: Gewehr98 on July 19, 2007, 07:24:13 AM
I've switched over to CFLs for all of the lighting here, save for the ones outside and in the unheated garage.  They just don't like starting up in winter temperatures.  When it got down to -20 last February, they barely flickered at all. 
Title: Re: Best CFL?
Post by: K Frame on July 19, 2007, 07:37:12 AM
We don't have any problems during winter wtih the CFL floodlights that we installed in my community a number of years ago.

Yes, they take awhile to warm up.

Two ways of dealing with that.

Put them on timers or photo cells so that they come on when it gets dark and stay on until morning, or get a flashlight.
Title: Re: Best CFL?
Post by: Nick1911 on July 19, 2007, 09:13:45 AM
Put them on timers or photo cells so that they come on when it gets dark and stay on until morning, or get a flashlight.

What, you don't have a CFL in your flashlight?  grin

In all seriousness, I'm not a big fan of LED flashlights...
Title: Re: Best CFL?
Post by: K Frame on July 19, 2007, 09:17:21 AM
I have a very cheap LCD flashlight that I bought for when I walked my dogs. It's very bright for its size.
Title: Re: Best CFL?
Post by: Nick1911 on July 19, 2007, 09:18:37 AM
I have a very cheap LCD flashlight that I bought for when I walked my dogs. It's very bright for its size.

LED?
Title: Re: Best CFL?
Post by: K Frame on July 19, 2007, 09:32:08 AM
Yes, LED, not LCD... Sigh.
Title: Re: Best CFL?
Post by: Manedwolf on July 19, 2007, 07:11:21 PM
Yes, LED, not LCD... Sigh.

LCD flashlight...

That could be cool. Project your favorite show on the wall to watch?  cheesy
Title: Re: Best CFL?
Post by: Nick1911 on July 19, 2007, 08:04:40 PM
Yes, LED, not LCD... Sigh.

LCD flashlight...

That could be cool. Project your favorite show on the wall to watch?  cheesy

I always thought a marketable product would be an LCD license plate cover.  Make it blank out the plate when the gas pedal is pressed to the floor.  I imagine it would sell pretty well to the "run red lights" crowd in areas where they have red light cameras.  Then my ethical/moral side kicks in, and I consider why exactly the moral implications of encourage people to run red lights at speed and endanger others?
Title: Re: Best CFL?
Post by: Paddy on September 17, 2007, 01:13:30 PM
I'm beginning to see some cheap no name brands at less than 1/3 the price (like $2 for a 4 pack of 100 watters) here and there (don't tell fistful one of the stores was Wallyworld).  There's a sticker on them saying the price was discounted somehow through PG&E Pacific Gas & Electric to encourage their use. 

Anybody use the off brands?   Is there any diff in light quality vs. the name brands (Phillips, Westinghouse, GE, etc.)?
Title: Re: Best CFL?
Post by: K Frame on September 17, 2007, 01:21:30 PM
I find that Phillips and Ge bulbs last FAR longer than any of the other CFLs I've tried.

Earthlights aren't terrible, but they're generally not great.

The Phillips I have in my post lamp out front has been in there for just over 3 years now. It's on a minimum of 8 hours a day, every day. In the winter, it's on a LOT longer.

The 13 watt GE on the back patio has been burning 24x7x365 for.... almost 5 years.

There are generally differences in light quality between all of the manufacturers; it has to do with the phosphor formulas they use to coat the insides of the tubes.

I recently had an overhead shop light go bad on me (transformer crapped), so I replaced and got new bulbs at the same time. The Sylvania bulbs I got (all they had that was reasonably priced for the laundry/work room at that point) have a distinctly different color to them than the similar "work room bulbs" by GE that are in the other three worklights in the room.

CFLs is one of those areas where I'll spend a bit more for the name brands.
Title: Re: Best CFL?
Post by: wooderson on September 17, 2007, 03:07:43 PM
N:vision from Home Depot - they're the same price or cheaper than anyone on the shelf, get good reviews and have worked very well for me.

You only get 'sickly light' if you cheap out or buy the wrong color temp. For some reason I bought a round of 'daylight'-balanced bulbs for the first room I replaced them in - cuz hey, daylight is yellow, right? Wrong - very bright, but a very cool color cast, it was like working in a sci-fi movie. Get 'soft white' - the perfect color temp for reading, watching TV, etc..
Title: Re: Best CFL?
Post by: Ben on September 17, 2007, 04:52:59 PM
Has anyone found dimmable bulbs for chandeliers? The kind that use the little bulbs shaped like a flame or whatever? The only ones I've found were the aforementioned N:vision brand, but they're only 3 watts which is like a 20 watt equivalent. I'm looking for around a 40 watt equivalent, but have only seen them as non-dimmable.
Title: Re: Best CFL?
Post by: Perd Hapley on September 18, 2007, 01:01:23 PM
Fluorescent bulbs, or at least some of them, will have a Kelvin color-rating on the packaging.  I believe lamps at about 2500 k will give a yellowish light, about 4000 will give a white light, and about 6000 or higher will be bluish.  To me, the white and blue is noticabley brighter than the yellow.  More info here:
http://www.gelighting.com/na/business_lighting/education_resources/learn_about_light/color_specifying.htm#CCT

In public areas of apartment buildings, I have replaced many 60 W incandescents with CFLs that gave a much brighter, whiter light.  And this is coming from someone who usually doesn't notice such things.  The first CFLs I installed in my house were in my dimly lit basement.  The low-kelvin bulbs I put in first were dim and yellowish.  I replaced them with bluish bulbs that work much better. 
Title: Re: Best CFL?
Post by: Paddy on September 18, 2007, 01:10:53 PM
That is really good information fistful. Thank you.  The 4 for $2 100W CFL's I bought yesterday don't have a kelvin rating, only lumens (1600).  The 'Daylight' version were $5 per bulb.  I'll check the package next time I'm in Walgreen's for a kelvin rating.
Title: Re: Best CFL?
Post by: Perd Hapley on September 18, 2007, 01:31:35 PM
That is really good information fistful.

Brought to you by Sentences Rarely Uttered, By Anyone, on APS.   smiley 

This looks like a good chart, about half-way down the page. 
http://nemesis.lonestar.org/reference/electricity/fluorescent/lamps.html

On past threads, folks have complained about blue light from fluorescents.  According to what I've read on the pages that Google turned up, natural daylight actually has a bluish tinge. 
Title: Re: Best CFL?
Post by: Firethorn on September 18, 2007, 02:11:16 PM
You only get 'sickly light' if you cheap out or buy the wrong color temp. For some reason I bought a round of 'daylight'-balanced bulbs for the first room I replaced them in - cuz hey, daylight is yellow, right? Wrong - very bright, but a very cool color cast, it was like working in a sci-fi movie. Get 'soft white' - the perfect color temp for reading, watching TV, etc..

The reason I bought a bunch of daylight bulbs is that I don't get enough of it, tending to work funny shifts.
Title: Re: Best CFL?
Post by: Perd Hapley on September 18, 2007, 04:49:06 PM
Quote
You only get 'sickly light' if you cheap out or buy the wrong color temp. For some reason I bought a round of 'daylight'-balanced bulbs for the first room I replaced them in - cuz hey, daylight is yellow, right? Wrong - very bright, but a very cool color cast, it was like working in a sci-fi movie. Get 'soft white' - the perfect color temp for reading, watching TV, etc..


I think soft white is very bad for some things, while daylight works very well for other things, depending on the brightness of the bulb, how many bulbs in the area, etc.  As I mentioned earlier, soft/warm white was very dim in my basement, while the daylight bulbs are working pretty well.  Of course, soft white might have been fine if they were higher wattage or better quality.  But the daylight bulbs I bought were the same brand, same wattage, as the soft whites.  IICR. 
Title: Re: Best CFL?
Post by: jeepmor on September 18, 2007, 06:06:33 PM
I've been using CFLs since they came out.  I bought them at Home Depot and they stated they had a 5 year guarantee so I took a sharpie and wrote the month and year that I installed them on the base.  Sorry, don't recall the brand or Kelvin level or I would share that too.  I think they were all soft white, didn't try any blue ones til the next round.  I've repeatedly gotten ~5 years out of several in a row now.  Some of them 5 years to the month.

The ones installed outdoors and in the garage appear to fail at 3 years consistenly.  I really like them and see the benefit as lower operating cost.  PGE (Portland General Electric) gave out a bunch of incentive coupons about 5 years ago with our power bill statements.  The replacements that are taking the place of this first batch are noticeably better in regards to startup time.  I've never noticed any flicker issue except as an indicator that it's about to fail.
Title: Re: Best CFL?
Post by: Perd Hapley on September 18, 2007, 06:28:12 PM
jeepmor, are you talking about the screw-in type that replace incandescent bulbs, or the push-in type that require a fluorescent fixture with a ballast? 

I've never seen any flickering in the screw-in type, but I've only been using those for a couple of years, and not that many of them.  The push-in type (such as PLs) don't seem to last that long, but probably because I was installing those in old fixtures with old ballasts (transformers).  They can flicker pretty badly, but again, the ballast is probably to blame.  The CFLs (I presume) have their own ballast built into the bulb, and ballasts usually last much, much longer than an incandescent bulb.  So no worries there, I should think.