There should be a service panel the size of a light switch plate somewhere at elbow height. Um i wouldn't know from experience, but cough cough I've been told it take a philips screwdriver and only two screws to undo and maybe some wire cutters or tin snips, be careful of the shock that I definitely didn't need to prepare for because I know nothing about giant annoying newly installed sun-bright street lights shining in my bedroom window at night lolol