On Sat, 12 Nov 2016 08:28:22 -0800 (PST), "Gramps' shop"
wrote:

Need to add some lighting. T8 or T12? Probably going with 2-tube 4 footers.

Before I sold the farm I had a shop with 8 foot T12 bulbs in 7 nice
fixtures -2 bulbs each- with refective tops and they worked very well
but ballast life was poor and the last time I bought bulbs I had to
buy a whole box. $160 + tax.

For my new shop I bought only flush mount pure LEDs. No bulbs just a
strip of LEDs rated for 30,000 hours (12W 790 lumens) and came with a
5 year guarantee. A major investment but with no bulbs to burn out
and a 5 year guarantee I think I will come out ahead.

Time will tell and YMMV

Jim