Im getting ready to put up a pole barn with a enclosed room for a shop. The room will be stud walls inside the pole barn Insulated and Heated and air conditioned not only for my comfort but also to enhance accuracy. Room is going to be 20' X 30'. Basic tools lathe, mill, saw, grinder, maybe a shaper and horizontal mill as to machines. also a tig welder. My wood working equipment will be stored in the building outside the room to save clutter in the shop. Ceiling will be 10'. Air line will be a 2" line center of the ceiling running down center with drops at machines and benches. Air compressor will be in the building garage area also. 1 6' door direct to out side. One 8' panel door to inside of the building. At least 1 bench maybe several. Im considering lighting now. What works best for doing precision work? Are LEDs up to the task or are they to yellow / shadows? Ive worked under mercury vapors ( yellow and shadows both along with a hum) Florecents a dull light but okay for most fine work. light bulbs good light but takes a lot of them to overcome shadows. Im wanting a good light that's dependable and lasting, Im in a wheel chair so changing bulbs is a real pain. Ive thought about angled fixtures down each wall in the ceiling wall corner 4 fixtures down each side. The 10; ceiling should help some with the shadows also.