Larry Jaques wrote:

I started with four 8-foot two lamp fixtures w/ mag ballast over
a decade ago. I think the fixtures were about $30 each. Last
year, I replaced all the ballasts with Advance electronics (at
about $25 ea). More than enough light. Use C50's.

Shop is 20x25.

Larry,

Scott Lurndal used four 8' fixtures too (32' of lighting).

That basically equates to eight 4' fixtures (32' of lighting. Lew's High
Intensity Lighting Sketch (LHITS) gives sixteen 4' fixtures divided onto
2 circuits. That is, 32' per circuit. So on one level, there is
unanimous agreement. I couldn't quite install sixteen fixtures, even if
I wanted to, due to my attic access. However, in its favor, the LHITS
model does provide an extra level of service (should I be in sales?).

A factor I was willing to overlook when I first started thinking about
installing lighting was "uniformity" in lighting. I guess that takes
things to a more professional standard. My original configuration would
have been powered by duplex outlets, and would would have been a highly
reconfigurable system, so there would not have been a real
commitment/investment. No so true at the current level.

I may hang a few fixtures, partly for the fun of nailing together some
8' twobyfour scaffolding (I want to Build, BUIld, BUILD!! with veins in
my teeth!)!!! ~ Arlo Guthrie. There's No Way anything could go wrong
in a small 8' high project like that! Maybe I'll post a picture, but I
don't wish for anyone with a license to look at it!

Okay, I'm off to work! I hope I left ya something to smile about! : )

Bill