What is the term for the large ball shaped lights that are used to illuminate roads during construction?

Question

I see the large lights used for illumination at night, but they are shaped kind of like a round ball and powered with generators. Thank you.

Answer 1

I think most people who are not in the construction industry just call them ライト (or something like 工事現場のライト).

If you really need a specific term for that purpose, you can use 投光器【とうこうき】 or 作業灯【さぎょうとう】.