Exactly, just like I posted above in post #12

Quote Originally Posted by FreeDaHerb
So in essence this would say the majority of the light a MH creates is hotter temperature wise ( except they are not equal in light output to the HPS which creates far more lumens) It really depends on the bulb..a hortilux HPS with the added blue for instance is one of the hottest bulbs there is temperature wise / radiant heat. Being that bulb is the only one I ever really used that would explain the HPS always being "hotter" than anything else. More lumens + tons of blue light = hot as hell lol
Also, since the infared is so far red it has a different wave length and is absorbed more by matter (more like x-rays) = hotter :thumbsup:

Thus the quirks of the HPS being hotter than the MH, esp. when it's the hortilux type most growers use that contains the hotter blue too. But yes, pure blue is hotter than pure red for certain as it contains more photon energy.

So we agree here dude.

oldmac is all by himself out on that branch in the wind lol.