7 colors 8" Rainfall Round Bathroom Shower Head RGB LED Flash Light Proof and rust resistance: The shower heads are made of quality, good material for high rust resistance and longevity. Tools-free Installation. Connects in minutes to any standard overhead shower arm, no tools required. When water flows down the LED will light instantly and automatically, we give you a unique atmosphere in your bathroom, provides an ultra-quiet delightful experience while you are taking a shower after a long day at work. Brightness is such enough even no other lighting fixtures need. Note: The change of LED color will not be subject to the temperature of water, 7 colors that are changing automatically.