Which CFL Temperature runs the Coldest?

Let's have a little vote.
Just a little something something.

Anyways cast your vote on which CFL temperature runs the coldest and why.
They all give off a good amount of heat but which is the best for these guys with poor ventilation.

Nothing off topic please.

Thanks everyone.

+REP for all who participate.

Bump?
Lol...

now want they all put out the same amount of heat.....those are just the color spectrum's...

6500k are way colder then 2700k, I learned from experiance with a room that has no ventilation...

Lol K= kelvin = measure in heat.
Im pretty sure those values represent the heat given off the metal used to excite the gas inside the bulb.
2700k being lower and therefore colder than 6500k

Due to my intense dedication to Science, when I saw this topic I knew I had to run an experiment of only the utmost accuracy.

Undertaking this task would be no easy thing, I spent years training in the Himalayas with a group of Yak Herders. Formed an underground coup with a pair of Golden Eagles and finally obtained inner peace by balancing a marble on a toothpick.

Only then was I able to undertake this experiment.

I opened the door to my grow room.

Reached in and grabbed the fucking bulbs.

2700k runs the hottest, 6500 is noticeably cooler on multiple bulbs.

Jorgewashington said:

Lol K= kelvin = measure in heat.
Im pretty sure those values represent the heat given off the metal used to excite the gas inside the bulb.
2700k being lower and therefore colder than 6500k

Click to expand...

To a point your correct... But your wrong when referring that to a bulb.. the 2700K -6500K when referring to a bulb is about color appearance not heat. Lower the K's the more yellowy light the bulb gives off.. The higher the K's the more it resembles the sun. Ironically the lower K's are called 'warm lights', and the higher K's are called 'cool lights' or 'full spectrum'
I have touched my 85w 2700K cfl, and my 85w 5000K cfl after a full 18 hours of lighting with the exact same ventilation... Fingers hurt a bit more from the 2700K

Good guesses guys.

2700K is Warm.
6500K is Cold.

Jah Mon!!!!!!