Our LED showerhead powers its lights through running water that show the temp in easy to understand colors. Overhead or handheld 3-color water temperature sensor Angle-adjustable overhead bracket Tool-free installation Features: Color Lights, Adjustable Angle Cut-Out Measurements: 4 Depth/Inches, 4 Height/Inches, 9 Width/Inches Base Material: 100% Acrylonitrile Butadiene Styrene Care: Wipe Clean Country of Origin: Imported