AmandaK LED Hand Showerhead with 12 LEDs - Color Change Every Few Seconds - Rainbow Effect Hand Held Showerhead - Luxury Light-up Showerhead - Chrome Rainbow Effect Hand Showerhead - Easy-fit Showerhead - LED Rainbow Cascade Showerhead &ndash; No battery or power needed! Water pressure powered LED lights. Easy & fast installation. No hardware required. Colors automatically change based on the water temparture. 12 Bright LEDs change water through 7 different colors gradually every 3 to 5 Seconds Awesome color-