What color temperature does this bulb emit?
1665753
Daylight, and the heat is cool enough that, your plants can get as close as 6in. without burning the leaves. Hope this helps.
1665754
The bulb is normal color, but it gets very hot....hotter that I want or felt was safe for plants.
2238916
Color temp is around 5000K. As for lumens it's hard to tell. Maybe 100-150 lumens
1215158
I would say the color is red hot. I think you could get a tan under one of these bulbs.
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.)
1092128
Thank you for your question, Mark! The color temperature of this fixture is 3000K, or warm white.
1962976
I responded recently that the color temp is slightly whiter than the halogen color temp. When I replaced three of them above our vanity she complained that the new bulbs really washed out her mirror reflection, so I put one of the originals back in the middle socket. The combo was satisfactory and saves us a lot on electricity. But I cannot answer your question quantitatively.
2251069
Adam, Hydrofarm's website has it listed as "full spectrum daylight" - 6400 Kelvin.....double check to be sure...mine was doa and they were out of them so I went with another bulb.
996922
I am not sure if they are available there, and, of course, this is a matter of taste, but I much prefer a warm bulb of a color temperature of around 2700K or 3000K like the Sunlite 05770-SU FML27/30K/CD1 27-watt FML 2-Pin and 4-Pin Quad Tube Compact Fluorescent Plug-in GX10Q-4 Base Lght Bulb, Warm White available on Amazon. It (and similar warm bulbs) give off a much nicer light. I did not even use the bulb that came with the lamp.
1990450
Color temperature or Physical temperature? 1 - Color temperature wise these seem to have a cooler white/blue effect, but without being over the top. Can't give you an actual temperature though. 2 - Heat wise, it'll depend on what your OEM bulb and wiring harness were rated at. Even running a bulb 5W higher could inadvertently cause issues with your bulb housing and light itself. I can't agree with the previous posters sentiment the "light energy goes up then heat energy goes down". The strength of the light (measured normally in 'lumens') will typically increase as the bulbs wattage increases, as would surface/air temperatures.
750871
Light emitted is whiter than standard halogens, but still not pure daylight white. I believe the color temp on these bulbs is around 3100 vs around 2700 for regular halogens. If you seek pure daylight white, try PIAA Extreme White. PIAA's are considerably more costly.
749658
If I recall correctly, instruction does indicate bulb is LED, but its been awhile since my install. The switch does not generate any heat and is actually cool to the touch, however, of the dozen, or so installed, several have failed, so no more red glow, but flickering. They have since been replaced and currently all are doing fine.
980662
Unfortunately the lumen specs is neither listed on the bulb nor the packaging. While the light output from this bulb is good the color temp is definitely not 6000K, please see my review.
2283649
It's due to the color temperature of 18K. The lower the number the more white/yellowish it becomes. Just like car xenon bulbs. 4k yellowish. 6k white. 8k cool. 10k cool blue and so on.
292721
I'm not sure what you mean about color temperature or light output. We just replaced the same ones that were in our track lighting in our living room as when we bought it. They are on a dimmer switch.
1158387
Very cold. I wish they made a 3,000K. They make an amber, however it is a yellow-orange color and not a warm white alternative. Bulbbrite are you listening?? The day they make a warm white 1W LED, is the day I place them in every socket where a only gentle light is needed. Hope this helps.
554343
On the back of the cover it says 200 degree Celsius (that is equivalent to 392 degree Fahrenheit or 473.15 Kelvin). But light color is very much equal to original bulb not very bright. I guess less bright may have more life.
541479
In agreement with other answers, the bulbs are "white" without the yellow or even blue tinge. 7000K is a good answer or about the color of bright 92 and above printer paper.