50w MV driveway light

I actually put this up about a year ago now, but this is my homemade 50w MV shoebox fixture at night. Obviously it's not this bright or green but it's close in terms of brightness. This summer we are either going to have a new garage built or fix up this one. (it's not in the greatest condition as you can probably see) I'm going to take this down and put up one of those RLM "barn lights" and I plan on having it remote ballasted with 70w CMH (the ballast would be in a NEMA pullbox behind the wall). Anyways, this has been running dusk to dawn for about a year now and the lamp hasn't really lost any noticeable output. (It's a fake Westy /DX).