Features: 1. This product is specifically designed for the Arduino extension line 3528 full-color LED modules. Small size high brightness have a perfect three primary colors in combination can modulate a variety of colors. All of which leads to the three colors of the pin public termination +5 V control terminal active low. 2. The products use PWM to adjust the color ideal for industrial design prototyping and lovers for your Arduino project to add a variety of colorful dynamic display. 3. Users can use our distribution pin header directly to the module found on the Arduino digital port eliminating the need for you to step complicated wiring. 4. Using high-quality RGB LED lamp beads light angle and use its internal reflection to achieve maximum light lotus effect. 5. White PCB elegant appearance better reflect the color of the LED Operating Voltage :3.3-5V Operating temperature: -40 ? to 85 ?