How much cooler in temperature is this bulb compared to a 12w halogen?
443681
For LED RGB light, the color temperature of the white is about 6000K to 7000K. Compare to a 12W halogen light bulb, which has about 2800K to 3000K, LED light bulb has 3000K to 4000K difference in temperature.
443682
Far cooler ... Don't know in terms of degreen but I can place my hand over without getting burned . I am assuming you are talking about heat and not color temperature
684088
I have used this bulb 24 hours a day, 7 days a week in our outside lighting fixtures. No problems with heat.
1454630
Don't know specs mine put out half the light as the halogen ones . It's more of a mood lighting , like a 15watt halogen bulb
1757732
The light temp is 3000K which is in the warm white spectrum, maybe a tad bit cooler than 2700K. We use these as accent flood lights on our house and the color is very nice and bright. They are not cool white.
1786262
Reading off the base of the bulb itself it says 7 watts, 525 lumens. I will also say that the light the Lightwiki bulb puts out is much whiter than the halogens we replaced as well. We left some of the halogens in for a side by side test and the color difference was significant.
963981
first things first, you can never expect halogen bulbs to match the light temperature or intensity of HID bulbs. getting that out of the way, I'm not sure why you would be running anything less than 12V to your headlights, but if this is the case then no, they will be neither as white or as bright as they can be. they are still great bulbs and you will get a whiter light than any other bulb i know of.
691159
This Feit LED bulb has a beam spread that is close to that of an incandescent bulb. I will say at least 300-degree.
1901148
Use a LED bulb instead of halogen. Way too much energy is produced causing large amounts of heat.
213894
As bright as a 100 watt incandescent bulb. Draws 27 watts, color temperature 6,500 Kelvins.Not as bright as you seem to want - not a directed beam.Bill
1213239
Please note these are 12V bulbs, not 120V bulbs. That said, I have no way of measuring the color temperature of the bulbs but from my experience with others I'd say these are about 6000k.
1878135
probably not as bright as a halogen but much more efficient, cooler, and not as harsh a light.
484950
It gets fairly warm, about the same as a conventional 60 watt bulb. It is rather huge and may not fit in place of a standard bulb. It is also very bright as it is the equivalent of a 300 watt conventional.
84378
The description hasn't said anything about temp of LED bulb. It just says, (Genuine High Quality 3 Chip SMD 5050 PREMIUM LEDs and Module, Pure White Color Uniformity )
815063
No! The LED units, while not cool during operation, is no where near as hot as the halogen bulbs that I replaced.
927306
we used GE Reveal Halogen. This bulb uses 53 watts, replaces 75 watt bulb and has 790 lumens. Uses 28% less energy. We love it.
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.
1581464
I am useing the flat lightbulb shaped LED bulbs in mine and have had no issues. They are cooler and brighter and it is noticable. The other bulbs were very hot, expensive and delicate.