HSS 7 LED Colors Change Fading Faucet Light Shower Head Auto changing Water Faucet, 3 Inch Wall-mount LED Beads Light Like Disco, Add Fun to Shower Selfpowered by water pressure only - no battery needed. Waterflow less than 2.5 gallon/min at 80 PSI, retains pressure while saving water. 7 Colors change automatically and randomly, like a strobe rather than at fixed interval or sequence. Matches standard shower pipe. ABS chrome surface, beautiful streamline, metallic feel but not cold