Does the quality of light run warm or cool on these?
1861610
I think they run cooler than warm, but not they didn't look blue. I'd guess around 2700 to 3000k.
1861611
I'd have to say toward the cooler end of the spectrum. We have them under a ladies bathroom vanity and kitchen cabinet. My wife likes them in her make-up area which doubles as a sewing and craft area. Kitchen application is pleasing as well. I guess if you're looking for a very, very soft light these are not it.
1861612
It is warm but not 2700k. The intensity of light is not same as halogen bulb under cabinet lights
1861613
Definitely cool; we have them installed in the kitchen and more of the gray tones in the granite are much more noticeable when they are on. I find them more useful for a task light than for an accent light. Remember this kind of lighting being listed as neutral in some of the research but they definitely lean to the cool side of the spectrum.
1861614
Little cool, but perfect for the kitchen. Plus you can dim these so they work quite nice
1659817
Mine get warm but should never get hot! The light should be on and there are some that look off, but they are the ones not visible to the human eye.
68660
Runs cool. I have it in an enclosed landscape light, but it used to have a halogen light in there, like most do. Either way you cut it, it's much cooler than the halogen.
1679127
The 2 I bought are actually warm. they have more of a yellow glow than the bright white.
1880980
They run cool, i haven't had any issues with heat. I've purchased 6 so far.
1924263
I don't notice that they give off a lot of heat. We have them in our glass globe pendant lights over our kitchen island and another set in our sconces in our family room (up high.) Not sure I would notice the heat factor based on the location but I think they are actually more subdued than regular bulbs. They cast a really nice yellow/goldish hue.
1604132
They are pretty good lights. When they are running they are good. When you turn them off, they make slightcracking sounds. Warm covers cooling off is my theory. It doesn't last that long...
600111
I have not used them in an area colder than 50F, but being an LED light, these should work fine well below zero.
1618039
I would say they are neutral, maybe slightly cool. But not that harsh bluish tone that you usually associate with LEDs. I attribute that to the cover over the lights.
1532316
They are "warm" which is a misnomer because 3000 Kelvin isn't a yellow "warm" light but a more white light... Not quite flourescent.. but definitely not warm. All the LED bulbs use this warm/soft terminology which is very poor and misleading. "Soft" is 2700 kelvin which is warmer (although still not as warm as incandescent.)
642873
The LED's will probably out live me! They get only slightly warm after running them for a while. They can run all night long no problem. Power efficient too!
2241894
Cool is generally bluish, warm is yellowish. This light is a white, medium warm light. Very pleasant on the eyes in the middle of the night. As noted in another answer, it is easy to adjust brightness to your own preferences. Also, the auto on/off lags by about 15-30 seconds - not a problem, just noticeable.
535402
Yes, the shades do get pretty warm. We plan to put LEDs in ours when these old bulbs burn out.
711437
You can run 'em 24/7 if you need to. They get warm, but not hot. I'm guessing a bigger issue is that they (intentionally) put in some UV LEDs to simulate sunlight, so you may want to have UV absorbing glasses when working around the light.
252126
They are Light emitting diodes. they don't get hot. But they are bright as heck for their size!
884209
Cool white is brighter. Warm white has more yellow in the light and is therefore a little less bright.
1618041
I would definitely call them on the cool side. About the only thing I don't like about this light is that the light is much bluer than the nearby light fixture (with CFL bulbs), which is kind of distracting when both are on.