DescriptionWith controlling of Integrated Circuit, LED light turnning from Bright to dark, then dark to bright, just like Breathing. It was Widely used in various fields of digital products, computers, stereos, cars, etc., with great visual decorative effect.Features- Material: PCB, FR-4 A fiberglass board - Demension: Approx. 29 x 23mm/ 1.14 x 0.91inch - Operating Voltage: 3V-5V - 5 LED Lights - The 5 LEDs will flash with the rhythm of music or other sounds it can be used as light for music dancers.