Hey ODG so my yard is small and bordered quite close on all quarters. the light from my neighbors porch lights alway worried me. But nope, you'd think so, but no. Haven't had any reveg or other issues

so I still say it depends when it comes to lights at night

I try to eliminate most with shade fence, car lights, etc. but knock on wood ambient  lights in the city or from my own house, hasn't affected my plants as much as it could.