Right on.. I'm going to try this first.. I want to supplement my 20K 250w. See if it helps with the brightness at all... I probably should have done it the other way around with a 250w 10,000k and 175w 20,000k.. I'm going to try it out.. Hmmmm hamilton 14k's eh... I'll try antything.. I can dispose of them at work in the hazardous waste disposal area.. The guys in the tyvek suits pickup all of the contaminated goods. I'm not sure where it ends up though...