Deck Mounted Water Power LED Sink Faucet (Chrome Finish)Advantages 1 No need any battery or electronic connection; 2 There is a micromotor inside the faucet and it can supply power to led light forever when water flowing. 3 Self design led part, have patent, and tested by the market that it is with longer life time and more brightness. Working The faucets can change color with different temperatures automatically when water flowing; Led turn blue when under28C; Turn green when between 28C 38C; Turns red