Oh yes, I had the 14000k bulbs from Hamilton and Phoenix and I wanted a bluer bulb which the 20000k bulbs from AB provide. I just haven't compared the 20000k AB bulbs to other double ended 20000k bulbs. That was my point. Yes, I like the ones I am using now more than the 14000k bulbs and the 10000k bulbs from a visual perspective. Now I am awaiting on the actual coral response to these bulbs