Link to the product is here for the 30 Channel DMX Controller under $40
Here is a 10 output RGB DMX controller found on the Aliexpress website page for $39.90 with free shipping. This is the un-boxing and setup showing the test with the controller running.
Maximum of 360w @12v is all you are able to run thru this board. This converts over to 30 amps maximum the board can run at any one time. I would highly suggest not running the "max". Stick with about 80% of that number and you are sure to have good luck running anything you want.