On 11/14/2016 8:17 AM, Swingman wrote:
....

I've changed 1, of 10, shop T-8's in 14 years.

I keep them on 24/7.

OTOH, earlier this summer I changed out the shop tubes for first time in
15 yr since came back to the farm and installed them as one of first
items of business in setting up a work area in preparation for the
reroof/restoration project. They've been quite intermittent in
operation most of that time...

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