You know the drill. 
There are promising indicators that this might work but they just don't give you enough information!
I found what appears to be the same item on eBay (more expensive) but more to the point I found a listing with a useful additional diagram:
Apparently you apply a solder-blob between two exposed pads to select the Input Mode and Output Mode as I circled in purple above. Note, for example, how in the diagram the module is powered by an "Accumulator Jar". What the %*#? 
I'm pretty sure by "Accumulator Jar" they mean "Battery"! Hence with mangled instruction like that you really need to do your due diligence, measure twice cut once, and so on!
I'll hunt around a bit more to see if I can find something written up by some U.S. hobbyist.
Those look to be standard square-pin headers spaced 0.1" (2.54mm) apart. The female sockets are widely available. Like the male pins, they come in strips of varying length and you cut off what you need. Or they may be available in the pin count you want.
OTOH I found another eBay listing with the same module that had a photo with no pins installed in the 4-holes...maybe they come separate and you solder them in? Who knows.
In any case, if the pins are installed, another option is to buy a bundle of pre-crimped female socket wires. These are popular with the Arduino crowd as you just peel off however many wires you need (e.g., 4 in your case) and press them on to the 4 male pins.
They typically come with a female socket on each end...so you just cut it in half and you have a bare-wire which is probably how you would connect to your LED strip (on the output) and receive 5V power (on the input).
Yes, I've used AliExpress without incident. There are other Asian-based sellers like them. And as for shipping times, it's the same-old choose 2 from: fast, good, cheap.
