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Old 09-29-2009, 10:55 AM   #16
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How to - get a better color/Light from CFL bulbs


Random things...

6500K is the recommended color temperature setting for computer monitors and the standard most manufacturers use for their online color tools. Bulbs in this color range are not bad for most applications.

Keep your eye on things like LED replacement bulbs as the technology is evolving rapidly. IMO they are still not bright enough for most situations and the cost is hard to justify. There is legislation floating around though that would ban lightbulbs with any sort of mercury content (staggering to see how much of the stuff does end up in landfills) so do not get too accustomed to the things.

Not sure how to get around the lights burning out when turned on and off frequently like in hallways. I do a lot of lighting work for galleries but theirs tend to be on most of the day.

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Old 10-06-2009, 11:35 AM   #17
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How to - get a better color/Light from CFL bulbs


Are there any dimmer-compatible CFLs? I have 5, 65w, incandescent, recessed floodlights in my kitchen - controlled by a dimmer switch. It would be nice to use 75w of CFL vs. the 325w that they eat now. I'm pretty-sure that CFLs do not like to be dimmed (at least fluorescent tubes' ballasts don't like it)?
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Old 10-06-2009, 11:40 AM   #18
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How to - get a better color/Light from CFL bulbs


They do make dimmable CFL bulbs
I have (4) - I actually need 5 for the Dining room
I put one in as a test (a year ago) & it does dim
They are usually more expensive $7-10 each depending upon watts
--Note I haven't checked prices on these recently - they may be lower
Some may not dim as low as incandescent bulbs
With CFL you need to turn them up past a certain point, then dim them down
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Old 10-07-2009, 10:48 AM   #19
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How to - get a better color/Light from CFL bulbs


Good thread all. I am in the process of switching as many bulbs as I can to CFL. I had a ton of them already in the house, so not going to upgrade to the recommended brands until they burn out.

I would like to change our outdoor dusk to dawn lamps to CFLs but am having a tough time finding either sensors that work or CFLs that are reliable. Most sensors that screw into the fixture only use standard incandescent bulbs. I did find and order CFLs with the sensor built in but am finding them unreliable--they do not turn on, or do not turn off, or flip on and off randomly for no reason.

Anyone know of or used any dusk to dawn CFLs that work?
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Old 10-07-2009, 12:07 PM   #20
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How to - get a better color/Light from CFL bulbs


They make CFL compatible Dusk to Dawn sensors, I know because I need to buy 2-4 of them.

Example (note, not an endorsement of any store, just example):
http://www.acehardware.com/product/i...LAID=396537285

EDIT:
apparently Ace has them at their outlet too, cheapest CFL sensor I can find on the web:
http://www.acehardwareoutlet.com/(cc...rce=GoogleBase

Last edited by hyunelan2; 10-07-2009 at 12:13 PM.
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Old 10-07-2009, 12:21 PM   #21
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Wow. That seemed much easier than the searches I made. The sensors I found were the ones that Lowes carried that were programmable (2 hrs, 4 hrs, 6 hrs, random) which were totally useless. I will try these. Thanks.

FYI, the CFL lamps with the sensors built in just are not up to the job (yet). At least the ones I spent $80 on weren't.

Thanks for the 411.
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Old 10-10-2009, 02:34 AM   #22
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How to - get a better color/Light from CFL bulbs


Dave that is good writing on the details on CFL's

Let me fill you in couple more details including some of the members may miss some information due I dealt with CFL pretty often so here a quick run down

For wattage size yes Dave is right with wattage listing and also they do come varations of shape

Speaking of dimmers yes they do have dimmable verison and of course they cost more however they will NOT dim excat the same as indentscent bulbs are espcally if dimmed lower than 25% of brightness level.
When they are dimmed the bulb colour will shifted to more warmer level and some case it will flicker { I know some cheap brand will do that }

Now for ceiling fan useage this part you have to be carefull with this one due I noted the trend of using canberila { very small } base to limit the wattage however some ceiling fans do have electronic control to limit the bulb wattage if that the case you will have to leave one indentscent bulb the rest with CFL in there to order to get it dimmed or turned on properly otherwise some will flicker like nuts.

Now for dusk to dawn and motion sensor verison this part get little trickier so I will break in two parts to clear up couple facts

Dusk to Dawn verison:

Typically it will be either wall pack or standard " barn light " luminarie type or simauir to street light the most common wattage I did see they useally are 65 watts but once a while I will get a 85 watts verison { more common found on larger units } for smaller size it will varies a bit by luminaire size and design they run from small as 13 watts to 23 watts and some will have photocell in there and some don't { I will expain more later with photocell part }

{ if you going to replace the Mercury Vapour units you will not able get new unit only bulb for short while due the engery pact so you will have three choices Metal Halide or HPS High pressure sodium or CFL verison }

Motion sensor verison:

Yeah this part I know more and more are showing up

However let me address couple issue is warm up time most case it will come on pretty fast but some delay to warm up when the bulb is cold.

Now with motion sensor and photocell there are couple items you have to pay attetion when you hook up CFL due majory of them are electronic ballasted unless you have magatic { old school } ballast and you will have issue with flickering when they are in off mode or stand by mode.

For me I useally get Intermatic or Watt stopper for photocell but for motion sensor Wattstopper work very well with me and I used alot in commercal building due both Intermatic and Wattstopper both used netual to power the relay so it will be true on or off not feed thru with some of two wire photocell verison.{ do you recalled with lighted switch handle it the same idea }

If have more question just holler one of us will answer more question if you need it.

Merci,Marc
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Old 10-13-2009, 10:48 PM   #23
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How to - get a better color/Light from CFL bulbs


I was just trying to figure out what type of bulb to put in my craft room...in the dark dreary dungeon
thanks!

Last edited by kimber; 10-13-2009 at 10:48 PM. Reason: retarded
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Old 10-18-2009, 08:32 PM   #24
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How to - get a better color/Light from CFL bulbs


I'm not sure if anyone mentioned my favorite thing about CFLs which is the fact that they last MUCH longer than incandescents. Our porch light used to burn out every few months, but the CFL there has been going strong for well over a year.
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Old 02-25-2011, 10:15 PM   #25
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How to - get a better color/Light from CFL bulbs


The problem is many people claim to make dimmable CFLs but there really is no standard. Lutron makes dimmers that solve the typical CFL dimming problems by pairing the dimmers with specific bulbs. This helps issues like pop-on and cutting out at low end, plus they dim much lower than the typical 25-30%. Been in the industry for many years and these do work quite well. All the info is at their site http://www.lutron.com/Education-Trai...LsandLEDs.aspx
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Old 03-08-2011, 10:43 PM   #26
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How to - get a better color/Light from CFL bulbs


I have a remote control ceiling fan with lights. When you turn the lights on, they 'fade' from off up to full brightness. It happens in a matter of a second, but it is noticeable.

Will a standard 'dim-able' CFL be an optimal choice for this application?
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Old 03-09-2011, 11:25 AM   #27
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How to - get a better color/Light from CFL bulbs


What is the remote controlling? Is the receiver built into the fan or does it use a separate module? If it is separate is the separate control a dimmer? The fading up could either be that there is a digital dimmer control that takes time to fade to high end or it could just be the bulb warming up. CFLs take time to get to maximum light output especially when they are cold
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Old 03-11-2011, 03:45 PM   #28
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How to - get a better color/Light from CFL bulbs


The remote is controlling a receiver that is built into the fan. It's a digital controller that automatically fades the lights on and off. They are currently not CFL.
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Old 03-12-2011, 08:33 AM   #29
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My guess would be that the digital controller won't work right with a cfl. Switching to halogens will get you better efficiency than incandescent an will still dim correctly.
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Old 08-23-2011, 10:13 AM   #30
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How to - get a better color/Light from CFL bulbs


Dave....good factual write up.

Lighting effeciency is somewhat of a hobby of mine.....all too often any comments about CFL's are full of bias....your post was about as factual as you can get. I'm going to chime in on a few things since it's been about 2 years since you first posted this......(BTW...thanks for putting both color charts up there)

LED Lights....I do not think LED's will be the holly grail of lighting. With current technology, LED's are maybe 10% more effecient than a standard CFL. Initially, everyone was bragging about the 100K hour life....now, the typical boxed LED at the store is claiming 25K hours...that works out to about 2 CFL's....but when you look at the cost....you could have bought 10 CFL's....factor in the diff in energy....CFL is still a better deal right now. I think the magic light is still waiting to be found.....

The main issue with LED's is that it requires even more complicated electronics to reduce the 120Vac down to a usable dc voltage for the LED's. That is where the real weakness is.

Note....I like LED's...they are great for low voltage applications....all of my flashlights are LED...all the dash lights on my jeep....and they are great for things like night lights and fridge bulbs.

The typical incandescent puts out around 14 lums/w (luminous efficacy/watt)
The 'average' CFL puts out 'around' 46-75 lums/w
The 'average' LED is around 70 lum/w
A T12 fluorescent bulb....around 60 lum/w (really no better than a CFL)
A T8 fluorescent bulb....around 80-100 lum/w
A T5 fluorescent bulb....around 70-104 lum/w
Low Pressure Sodium...100-200 lum/w (main reason you see them for street lighting)

Now....here in California we have this thing called Title 24 which covers energy effeciency....great thing excepet I guess no one told Home Depot or Lowes....

When you do a new house or remodel, some of the lighting as the be high effeciency....ok...I'll just use CFL's. Well, all the CFL's we see in the big box stores have the Edison base....per title 24, any light with an Edison base does not count as high effeciency regardless of what you have in there....ask me how I know......

Enter the GU24 socket.....

This is the socket you should try to get if your installing new lights. It is a short base with 2 pins....just a simple insert, short twist...done. The below link shows one.

http://www.buylighting.com/Compact-F...ulbs-s/318.htm

You can get the same CFL...but with the GU base...and makes for a much shorter bulb. You can also get LED bulbs with the same base. I do see this base as being the one to go with on any future lights....Oh, and BTW...bulbs are about the same price....you just can't find them at HD or Lowes....

For anyone who wants to know more about lighting....here is a great site...

http://www.candlepowerforums.com/vb/forum.php

Believe it or not, there are guys who collect flashlights....OMG....and you thought comic book collectors were 'different'....

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