The decoder receives the standard - 512 signal and it is converted into a PWM signal for driving the LED. Connect the digital console and the module to achieve dimming and change procedures. Low cost and high quality. Type: DECODER Voltage: DC 12 - 24 V Current: 4 CH x 8 A Power: 12 V less than or equal 192 W Working temperature: -20 degrees Celsius to 60 degrees Celsius Material: Metal Item Weight: 352 g / 12.44 oz Item size: 16.5 x 7.5 x 4 cm / 6.49 x 2.95 x 1.57 in (L x W x H) Package Contents: 1 Set Of 512 decoder Only the above package content, other products are not included. Note: Light 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.