Mushroom cultivation is the most time consuming thing you could choose to do.

Peramerters inside your fruiting chamber is more important than the light. Mushrooms are not photosynthetic, but they are photosensitive. They just need the light to tell them to grow. The light doesnt tell them to grow up, gravity does that.

You never want to give them direct sunlight, only ambient light (the reflection of light off of objects). Just leave them in a closet, and open it 3 times a day to fan the fruiting chamber, and mist the cakes, or logs(whichever tek you're doing).