These turn signals found on Amazon provide additional running lights in the front and additional brake lights in the rear as well as a small but bright turn signal.
The turn signal itself will plug right in, but you will have to find the right wires to power the running and brake functions. I have installed these on 3 China bikes so far and are really happy with them.
https://www.amazon.com/Version-Kinst...%2C271&sr=8-20