Looking at the pictures this must be a low wattage ballast? The wires are fairly small, or at least appear so in the picture.
In the first picture the plug in must plug into the ballast and then the other end you wire into the light socket. It appears to be an odd socket design too. Are you in europe?
That ia also a very odd ballast to have so many wire hookups on it. Usually there would only be 3 wires unless it was a 220v ballast.