Glad to have you. It will be light-proof. I stood inside the other day and had my wife shut me in. There are a few spots in the corners where I'll have to do some touch up with tape or Mylar or something. I figure I'll wait until I have the light, fan and whatnot mounted before taking care of the remaining light.hey looks like its gonna be a very nice setup im subscribed. hey will the cab be light proof?