I am look for a tuneable and dimmable white light. I see KL120 and KL125 do both but there is a significant price difference on AMZ. I see the KL120 is 10W vs the KL125 9w. 1W should not make a big difference for me and the multicolor of the KL125 is irrelevant. Is there a reason the KL120 commands a lot more money?