Tricolor LED displaying. 126 channels jumping frequency automatically 7 groups ID code settable. Small size, easy to suit for interior of accessed lighting. SPECIFICATIONS: Work Voltage:12V-48V DC Communication distance: 400M ( visible distance ) Work frequency section: 2.4G ISM Max transmitting power rate: 20dBm Receiver sensitive: -94dBm Signal port: 3pin female plug How to connect the wireless circuit board: Red wire: 12V-48V + DC power Black wire 1: 12V-48V + DC power Black wire 2: Interface 1 / Ground (GND) Blue wire: Interface 3 Yellow wire: Interface 2 This connection method works for 99% of devices. If it does not work properly, please swap the blue and yellow wires. ID code and LED color corresponding relationship: 1: RED 2: GREEN 3: RED+GREEN 4: BLUE 5: RED+BLUE 6: GREEN+BLUE 7: RED+GREEN+BLUE key 1 time to indicate ID setting, again to set IC. Working condition: LED constant lit up: no or wireless signal. Red LED flash: transmitting. Green LED flash: receiving total 126 channels, it's searching automatically. ID Code- "1-7" groups ID code, "KEY" for setting. Establishing Communication: Power on. Communication was established correctly then. Color: Blue Material: PCB+Plastic Package Contents: 1 * Wireless DMX512 PCB Module Board 1 * Antenna 1 * Connecting wires Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.