--RELAY-3CH Working temperature:-20-60 Supply voltage:DC12V Product size :L120 x W55 x H20mm Output:3 group Relay switch (Normally open) DC5V-48V MAX 10A DC5V-250V MAX 10A Controller: DMX512 3P weight:0.15kg DMX512 data: 0-127 Relay switch OFF 128-255 Relay switch ON Safety information: 1. The input voltage of this controller should be follow. The specifications,other high voltage would most probably it. 2. Never connect two wires directly in case of short circuit. 3. Lead wire should be connected correctly according to colors that connecting diagram. Color: As Shown Material: plastic Package Contents: 1 x 3CH dmx512 LED Controller 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.