Well, turns out one is not enough, but if you pair it, two can.
Hella.
None. They just redefine 'darkness' as an industry standard.
One. Five. One.
They still haven't figured out how to screw in the lightbulb
Because we turn them on. / /
You boil the hell out of it.
Because then it would be a pair (pear)!
Because it held up a pair of pants.
One to screw in the lightbulb, stock four carts of supplies, and handle seventeen simultaneous customers at any one time for five consecutive hours.