Of course. Obviously we’d be doing it to lower temperatures and prevent climate collapse. I mean to say that it would not be harmful to life.

It would have no meaningful impact on the ability of any biosphere on Earth to function as it currently does. We get about 50% more sunlight than we need. The majority of that sunlight (and I mean the enormously overwhelming majority) is converted into ambient heat.

We know this because when the sun dims by several percent over the course of years, nothing happens on Earth, except global temperatures very slightly drop.