During a brownout do the CFLs work at all? The long 36/48 inch fluorescents barely come on and constantly flicker so they are worthless during brownout.

During a brownout do the CFLs work at all? The long 36/48 inch fluorescents barely come on and constantly flicker so they are worthless during brownout. The incandescents are fine in a brownout. They just give about 1/4 to 1/3 less light but they turn on and don't flicker and you can use them.

Where CRI comes into play is with pigments or pigment mixtures that reflect colors that are in the light source's deadbands. For example, a pigment that admits light primarily around 520nm would appear much darker relative to a pigment that admits light around 545nm

Huh? What about a crookneck desk lamp? And you are painting your fingernails? You crook the lamp so that the light is just above your nails. It is a little more than one inch but not much.

CFL's really distort color and, in a place like Hawaii, there are not the choices that those in huge cities on the Mainland have. Old, regular, long fluorescents also badly distort color now that they cannot be obtained at the higher wattage. Bluish light masks some health issues too and ruins color for clothing. So called "sunlight" fluorescent lamps also badly distort the color and actually are harder on the eyes than incandescent in soft white.

2.5cm is 1 inch. You cannot be with in one inch of any light, Even a standard table lamp the shade is at least 4 inches away if not more. and a standard height ceiling is 8ft off floor level so a normal height person is 2ft away even standing right under it.

These studies are full of shit, Do the test with CFLs at normal everyday distances and then get back to us.

You didn't just disagree, you added insult.

I fail to see how.
Disagreeing with you isn't an insult.

Did I insult you?

Yes I am guilty of posting my opinion now and then here and there on this forum. Worse, it may be different from yours. Guess that means insults should fly in my direction for not thinking the way you do. :(

You think it's a bad idea.

It's kinda strange that your LED gets hot because i have both Light buld led and GU10 led and the are warm but not hot. I can remove them by hand. The buld and the GU10 are equivalent to 50w lights. I recently replace halogen GU10 because they were overheating the recessed socket in the ceiling. The LED are philips hue Lightbulb and stay warm to the touch from base to glass even at max power. Do you use dimmers with those ? some might not be dimmable.

I think small CFL replacements for home lighting have been a bad idea from the start, more so when they were made less expensive by cutting corners.

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The report states that most bare spiral lamps tested gave off more UV than the 60 watt incandescent lamp tested, but that the double-envelope CFLs emitted less UV. At 30 cm distance, the recommended maximum daily exposure was attained between 3 hours and 6 hours, with little difference between the studied 60 Watt incandescent lamp and any bare-spiral CFL. The report states that the Threshold limit values used represent otherwise healthy individuals who are not experiencing any hypersensitivity conditions or exposed to substances that increase UV sensitivity. Outdoor sunlight can supply the maximum recommended daily UV exposure in 20 to 100 minutes.

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Same thing happened to me as jkj860. I recently remove a CFL that wasn't working. I had a horrible burned smell coming for it and th base where the tube connect with the base of the light was burned. I now use LED lighting. Cost alot less in electricity and generate alot less of eat. you can remove the bulb even after hours of use.

Indiana and Pennsylvania have had their sunlight cut off in accordance with the "Three Strikes" rule.

Too much reading of books, a clear copyright violation.

said by Raphion CFLs produce more blue light, which is what kills your night vision. A trick to preserve night vision without having to actually stay in the dark is to wear amber, or even better, red tinted goggles, or use amber or red lighting. Your 60 watt incandescent lamps are... you guessed it; amber in color.

This is some what scary because I do use CFL's quite a bit... in fact I have a "150W" (which are huge) that sits in a silver bowl clamp light, I use it for detail work, so I'm under it, at close range for a few hours at a time...

One thing I have noticed about CFLs is that the light tends to leave me night blind for longer... for example, in my bathroom I have two recessed lights and a vanity light... the vanity is incandescent bulbs and the recessed are CFLs. The emit about the same level of light in the room when position is considered... I started noticing that if I ran the CFLs (regardless of whether I run the vanity or not) when I turn the lights off my vision is completely blank for several seconds... if I run the vanity only, the same thing does not happen. The vanity consists of (4) 60W bulbs and is actually closer to eye level... the recessed are (2) 13W bulbs. That alone has had me a bit nervous as to what CFL light is doing to my eyes...

I never liked the CFLs. Ugly color temp. Yellowing base. Noise.
I know they have mercury in them (very low amount).

Try changing your user agent,THE STORY DISPLAYED FINE FOR ME..

You are basing all of this on an abstract? :huh: Or do you have the full paper.

Edit: saw your SA link, thanks

Another link »www.sciencedaily.com/releases/20···2738.htm

They can make you blind and give you cancer.

Halogen lamps also emit UV.
As do regular old fluorescent lights.

Much ado about nothing, IMHO. Especially since I'd say most are used in some sort of fixture that will include a glass cover.

Shame really as I like the look of Daylight CFL's much better than the nasty, ugly incandescent "soft white" light.

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The team exposed healthy human keratinocytes and dermal fibroblasts to the CFL with the highest UV emissions at a distance of 2.5 cm for 2 hours at a time.
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But in contrast to media depictions of “skin-frying” CFLs, researchers are reluctant to draw conclusions about consumer risk on the basis of these findings. “The UV measurement procedures are not described, so one cannot evaluate the data,” says Mats-Olof Mattsson, a cell biology professor at the Austrian Institute of Technology. The authors also reported higher UV emissions than other studies have found and did not follow international measurement standards he adds.

In vitro studies have limitations for assessing CFL impacts on skin because the intensity of light reaching the cells within skin is much less than the light intensity at the skin surface. Furthermore, says Harry Moseley, a photobiology professor at the University of Dundee, “Work carried out in vitro can be helpful to show the direct effect of UV radiation on the cells, [but] it doesn’t tell us how the body deals with any damage to the cells.”

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