Just want to comment on my recent purchase of the two-colored faucet light. I am very satisfied with my purchase. I was very impress with the ease of installation, and it did work in accordance to your claims.
I will definitely purchase probably two (2) more for my house. I am sure once my family and friends see this gadget they too will probably purchase at least one.
I would like to make recommendation about this product. Can you design a similar product for the shower light? Instead of the colors blue and red, why not try to make it a multi-colored water filtration, eg. blue-green-red-fuschia-yellow. Or have it do blue (cool-cold) to purple (medium temperature) to yellow-red (warm to hot) I believe it would be a nice novelty to sell.
Please reply if you are planning such a project.