FaucetSuperDeal LED Faucets are good for more than just an easy wow-factor. Actually, one of their more important features is actually safety. Cheap LED Kitchen Faucets are often activated by heat range in much the same way an anti-scald device works. That is, when the the water is at, above, or below a certain heat range, the lighting change shade, changing along with of the the water, usually red for cool the water, violet for hot the water, and red for hot the water.