Specification: Color (Optional) : Red, Yellow, Blue, Green, White Nature Of Work: Led Driver Application Environment: Suitable For Arduino Control, for Mcu Control/Indicator/Light Tube Software Interface: Digital Ttl Level Control Mode: High Level On, Low Level Off, Pwm Dimming Dimensions: 20 X 20 MM/0.79 X 0.79 In Operating Temperature: -40℃-85℃ Power Supply Voltage: 3.3-5 V Product Size: 20.00 X 20.00 X 15.00 MM/0.79 X 0.79 X 0.59 Inch Type: Led Condition: New Note: Due To The Different Monitor And Light Effect, The Actual Color Of The Item Might Be Slightly Different From The Color Showed On The Pictures. Thank You! Please Allow 1-2 CM Measuring Deviation Due To Manual Measurement. Included: 1 X Light Emitting Diode Colorful Electronic Building Blocks: The light emitting diode offers red, yellow, blue, green, and white electronic building blocks. This allows for a vibrant and visually appealing display, adding an element of fun while catering to various project requirements. LED Indicator Light: Equipped with an LED indicator light, this light-emitting tube module provides visible feedback about the operational status. This feature enables quick and easy troubleshooting, ensuring smooth operation. On-board Current Limiting Resistor: Our led indicator features an on-board current limiting resistor. This ensures safe operation by preventing the LED from drawing too much current, thereby prolonging its lifespan. Broadly Compatible: Designed to work with various 3.3V/5V single-chip microcomputers, this led sensor provides versatile compatibility. Whether you're a professional or an enthusiast, this module adapts to your specific needs. Easy to Control and Operate: The light-emitting module can be connected to a single-chip microcomputer via DuPont wires for light control without the need for an additional driver circuit. It's capable of glowing when directly powered, simplifying your overall setup.