as much as i like florscent lights. from 2 to 4 to 8 footers, when it comes to winter, and quick access to on/off full power lights... i like cheap incandescent bulbs (screw in type). i can buy some electrical boxes, cheap plastic light fixtures, and wires, and run them down side walls (couple feet off), and get light were i need it. it takes more time to initially put them up. but i am no longer concentrating all my light from a 6 to 12 florescent lights, but rather 12 to 24 plus small incandescent light bulbs clear around the perimeter of the building.
to me florescent lights ,simply take to long to warm up. and as the bulbs get old and/or more so the ballasts. to much flicking, and to much humming sound coming from them, along with reduced light amount.
i do have one i want to say 400watt center light in the one shed. it takes about 5 to 10 minutes to warm up and give full light. while the incandescent lights, work nicely, the nice bright light from this tends to help make the "center project work area" nice a bright. so i can see stuff in better detail.
between all the multi incandescent lights, i have very little "shadowing effect" any place in shed. so no going some place and finding out i gotta stand just in right position due to my own shadow.
all my walls = storage, from tools to lumber, to everything else. and the central main area = work area. large items like push mowers, pull behind sprayers, table saw, cut off saws, drill press, even work bench. are all pulled away from the walls. and moved more towards the center. were i can move them around a little bit if need be.
trying to read pencil marks and trying to cut stuff right up near a wall. has never been fun, and trying to get dedicated light to those areas has been ugly, hence moving most of actual working to the center. and storage around the perimeter.
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you have a good building, at later time, you may get some upper sides, and enclose rest of the sides up.
