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Cougra · 03-26-2004, 04:23 PM

It has to do with the colour of the bulb. It takes more energy to produce the high K light, thus less par is produced.

The easiest way to explain K is to picture a fire. The outermost flames are the coolest and give off the most light, actual physical temperature of these flames are between 1600K to about 4500K.
As you get closer to the coals, the colour changes and the fire gets hoter. By the time you come across the extremely hot blue flames you are in the 10,000K to 20,000K range. Although those blue flames are extremely hot, they don't give off that much light.

03-26-2004, 04:23 PM	#31 (permalink)
Cougra Dragon Moderator Join Date: Nov 2003 Location: Toronto, ON Posts: 2,216 View Gallery Karma Komment	It has to do with the colour of the bulb. It takes more energy to produce the high K light, thus less par is produced. The easiest way to explain K is to picture a fire. The outermost flames are the coolest and give off the most light, actual physical temperature of these flames are between 1600K to about 4500K. As you get closer to the coals, the colour changes and the fire gets hoter. By the time you come across the extremely hot blue flames you are in the 10,000K to 20,000K range. Although those blue flames are extremely hot, they don't give off that much light. __________________ Michelle Just because something CAN be done, it doesn't mean that it SHOULD be done!