Probably be enough light to light up the space. It's not the right fixture to use from 15' to do a good lighting project, though.
Pros:
They're cheap...I've seen them given away for free.
Cons:
It'll buzz like crazy.
The ballasts are likely near death.
It's about 1.5' tall
4 of them will max out a 20A circuit.(derated to 16A).
Lamps last about 16-20,000 hours.
Will put "pools" of light on the floor. Might be OK for storage area.
They're HEAVY. If they dont come with hangers, you'll need to find a way to hang them, which will cost more money.
They're extremely inefficient compared to new fixtures. At 1000 hours, these will cost around $45 per year to operate..EACH.
Good luck,
CD