Marc said "I hate customer supplied fixtures"
Been there, done almost that same thing . . .
Had a missle launch tower demolition project. The project was to provide tempory illumination in the elevator equipment room. The engineer, in his infinite wisdom, saved his company some money by providing six 'box store', two lamp 'shop lights'.
They were 'Hecho'ed in China', and what pieces of crap they were! Problem here was the keystones. Seems like the phase of the moon, and every other influence, caused a no light situation! I could count on a message from that engineer every morning!

Must be how he got his exercise, checkin' on those fixtures before work, and calling me! (just to access the jobsight required travel, and a 15 minute, one-way walk up, longer if you smoked).
Journeyman at the time made $30 plus 40% burden, before OH and profit. Profit? Oh - I remember that

.
Seems like we have 20-20 recall on the loosers . . .
Marc, sorry to have butchered your name in times passed. I'm about to straighten up!
Best Wishes