Need info: I just changed my MH bulbs

[globaldesigns]

Originally Posted by DiverDude

This doesn't add up. 10K is 10K. If the Hamiltons are noticibly different then either they -or the Ushios- were not, in fact, 10K.

An analogy might be that you say the room is 20 Degrees C but the room is actually only 15 degrees. 15 is 15 and 20 is 20.

Of course, people can perceive colours differently but at the end of the day, 10K is....10K !

The only thing I can think of is that the way the bulbs are specified is loosy-goosy which might explain it but otherwise....

Well that is the problem, there are NO standards that manufactures follow. I have used Pheonix, Ushio, Hamilton, Coralife and now XM... They are all different even though they were all the same (so called) rating/K

I guess that is why there are so many threads of bulb choices, as you can spend alot of money trying to figure out what you like.