Close the doors (or not) and turn on the lights.
I have the same problem. Natural light is great, but it isn't often well distributed. I use 4 foot LED light bars even though I have lots of natural light.
When I'm under the car it's a particular problem. I got these Craftsman LEDs that work well. Yeah, I hate what has happened to the Craftsman name, but these work pretty well.
https://www.lowes.com/pd/CRAFTSMAN-3000-Lumen-LED-Portable-Work-Light/1000716822