None, they enlighten themselves.
Five. One to change the lightbulb and four road guards.
CHANGE !
A light bulb weighs about 50g and a single ant can lift about .2g, so it takes somewhere around 250 ants working together.
removed
He had no attachments.
With zen diagrams!
He became enlightened.
One to screw it in and nine to write on their blogs about how enlightening the experiment was.