3 Channel 5A DMX512 Decoder Controller Relay Switch Kit DIY Converter DMX Dimmer Relay With Protective Shell

I have been building a home video studio and to illuminate the big greenscreen, I bought a two-pack of softboxes utilizing large CFL bulbs with only an inline power cord switch. Now that I've permanently mounted them from the ceiling, they are difficult to reach to switch on and off. I have since added a DMX-capable LED point light from Godox. I already had an Art-Net to DMX interface, so my thought was to add the CFL bulbs to the DMX "universe" and control the power on/off state from my new Elgato Stream Deck XL (using Bitfocus Conpanion)..To wire this up, I bought a multipack of 1 foot port-saver extension cords and cut off the male ends. I took a rather heavy-duty IEC computer power cable and cut off the computer end. Because this device presents the normally-open "dry contact" pins of the 3 relays, you must supply the "hot" supply feed to each relay. Instead of attempting to daisy-chain the hot (black) conductor to one side of each relay, I used a yellow, 4-pin push-in electrical connector (made by Ideal and the STANDARD over wire nuts in Europe) to split the black conductor to 3 short black wire sections. Meanwhile, I directly bridged the green (Ground) and white (Neutral) wires in separate yellow 4-pin connectors. You only need to "switch" the hot leg to the sockets. The ground and neutral stay wired straight to the sockets (using wirenuts or connectors)For the board's own power, I just found an old 12VDC 1A wall wart and chopped off the DC coaxial connector to connect it to the two power pins of the board.As far as the DMX input, I bought the cheapest 10 foot, 5-Pin DMX cable I could find on Amazon and chopped off the female end. My Ethernet to DMX interface has 5-pin XLR connections. However, you don't actually need pins 4 and 5. So on my cable, pins 4 and 5 were red and green (conductor jacket color). I removed those wires on the stripped end. Black is DMX+ and White is DMX- and the shielding is Ground.I set a static IP address to my DMX interface and set up Art-Net as a Bitfocus Companion "interface" with the static IP address and port of my DMX interface (for unicast mode) using DMX Universe 0. The relays worked the very first time.To avoid power-on current in-rush issues, I offset each channel's power up command by 100ms, so that any power up will stagger the relays by 1/10 of a second. For the to-off transition, I set no delays.All-in-all, this $25 box has made turning on and off my studio lighting quick and easy. Just remember that these relays are only rated at 10A for 125VAC (5A @24VDC). In my case I have a single CFL bulb on eaxh of the first two relays, so it isn't that close to the limit. If your load is higher current or it's a motor, inductive load, etc., you'll need to use this device's relays to drive the coils of a more appropriate relay which can handle the power requirements. This is still a viable option in those cases because it's easy to find high current relays, but not with DMX control.By the way, I use relay 3 to turn on and off a little Dewalt 20V Max fan (DCE511B) when I need a little airflow. Since it was designed to run from their 20V Max batteries (or mains power), it runs with very low current unlike shop fans, plus it is pretty quiet.

I could split hairs here and talk about the quality of the plastic case and how I wish it was a little nicer, but honestly there's no point. This thing does exactly what it says it'll do and I have no issues. I'm buying a second one to have as a backup just in case something happens to this one.Also, I had a hard time finding information about this, so I'll share it here:3 DMX channels, each of the 3 relays is it's own channel.

Worked great. Used to control 3 outlets with wireless dmx module. Order me a second one

We use this to trigger our DMX Lights to turn on power to them. We prefer to power our lights off due to some issues with lightning. We have a preset on our Lighting controller that turns the lights on and off on start up and shut down.

This compact unit is exactly what I was looking for to make my American DJ fog machine DMX controllable. I salvaged a DMX I/o jack board from an old fixture, added a 12vdc transformer, and soldered leads in parallel to the momentary switch on the back of the fog machine. Everything fits inside of the fog machine. On this decoder, DC power goes to +/-, DMX wires go to d+,d-, and ground, and the switch leads go to the two k1 terminals. Simple on/off operation within my DMX software now. 0-127 is off. 128-255 is on.

Super easy to use connected to the dmx without an issue