Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: CFL Brightness

30 May 2011   #11
Microsoft MVP

Windows 7 Ultimate X64 SP1

Heat shouldn't be a concern seeker, the CCFL's run cooler than the equivalent incandescent type lamp. I am using several and I don't notice any brightness difference but they do have a warm up cycle to reach full intensity, but it is short.
The EPA or some agency here in the US have a ban on using incandescent lamps at some point so CCFL will be our only choice, which may be the reason for the price drop.
6500K is a lot "whiter" than a standard bulb, while 3200K-3600K more closely resmbles the normal type bulb in color output.
My System SpecsSystem Spec
30 May 2011   #12

W7x64 Pro, SuSe 12.1/** W7 x64 Pro, XP MCE

I guess it must be a difference in the way that they are made, because I haven't noticed a prolonged warmup period on any of my CFLs. It takes maybe a second, and they are at full brightness. As far as how dim that they are, that depends on the wattage and color of the bulb. I have a 3000k 150 watt equivalent bulb over my desktop, and a 100 Watt Equivalent 6500k in the kitchen, and the difference is like between night and day. Eventually, I will probably convert all of my CFLs to 6500k. I really like to be able to see what I'm doing.
My System SpecsSystem Spec
30 May 2011   #13
Microsoft MVP

Windows 7 Ultimate X64 SP1

Yes the 3000K will look yellow in direct comparison with the 6500K. As a rule of thumb, 5000K is considered to be the color of light on a full sunny day with sun at its highest spot in the sky. Our brains tend to normalize our perception of light color if only one source is present.
But we'll tend to see whiter light as "brighter" even if the source has the same output, in candle power or lumens.
I have the 6500K in my kitchen as well, very nice.
My System SpecsSystem Spec

30 May 2011   #14

W7x64 Pro, SuSe 12.1/** W7 x64 Pro, XP MCE

One benefit of 6500k, is that it makes a good grow light. Maybe I'll put some plants in the kitchen.
My System SpecsSystem Spec

Thread Tools

Similar help and support threads
Thread Forum
Can I eke out a little more brightness?
I purchased a used Dell Ultra Sharp 2007 FP from a company and it had a bad spot on the screen. After several misadventures, I finally got a replacement with the screen in good shape. But after several days, I just get the sense that the brightness level is less than the original, even though...
Graphic Cards
Can not set brightness on laptop
Laptop model: HP 6735s Windows version: Ultimate x64 Problem: Can't move the screen brightness bar to a higher setting, just reverts itself back to lowest value; Sometimes I succeed setting it to the maximal value but thats only if I try a lot and if I get lucky...very odd bug; Screenr -...
General Discussion
Brightness Policy?
Is there a group policy to lock down the brightness settings that are normally configured into the control panel power options? Or alternatly, can I force these back to particular settings by saving and restoring regsitry keys upon user login? Thanks
General Discussion
Ever Changing Brightness?
What's up with the Brightness on my Laptop constantly changing? It seems to get brighter then dimmer whenever it feels like it, and it's getting very annoying! I've tried changing the Brightness plans in the Display menu, but it still does it. What's the best way to set the brightness just the way...
Performance & Maintenance
Brightness too high :(
Hi :) Don't know if is only a my problem but the brightness of Win7 tired my eyes. The backlight of the white, the icons retro illuminated...there is a way for have a brightness like XP? Now I use the basic theme and I have disable all the effect but the problem is the same :(

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 00:09.
Twitter Facebook Google+