tail light

So I bought this LED Tail light which only has two wires?? I have an 87 TW the and old tail light had 3 wires. A ground (black), Brake Switch (Yellow), Tail lamp (Blue)? Can I make this work and how? I've been going through the forums and haven't had any luck. Thanks in advance.

Back story: I purchased a New LED tail light with integrated turn signals of ebay. I already had the LED tail light from PROCYCLE. I bought the ebay LED because I also just recently bought a pair of LED Tuff Lite turn signals and didnt realize it was only one pair (blonde moment). Instead of...