Description Supported Scratch programming ElecFreaks builded EFBlock support drag and drop programming 3P buckled wires connector Brightness of LED can be controlled View more What's Included 1x - 5mm LED Brick 1x - Analog Sensor Cable Links PDF File Specifications Voltage: +3.3-5V Pin Definition :1 Signal(Yellow) 2 Vcc(Red) 3 GND(black) Weight: 5g