Are they polycarbonate covers or glass.
Put 4 x 50 watt LEDs high up this double barn - not good enough for doing the crossword but a damned sight better than nowt.[emoji6]
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Lo-bay, lo-bay, lo-bay.
Unless your roof is very high then Hi-bay.
Do the crossword? you could do brain surgery or drill teeth with lo-bay.
They do take a bit of time to fire up, leave the strip lights in, have the switch for the lo-bays at the other end of the shed so you only turn them on when you really want to be in there.