Best light for my indoor bunny's cage

Hi
Trying to figure out what the best type of light to use in my indoor bunny's cage.

I have read everything from UV light to natural daylight bulb. With it being winter, she is not out as often as she is in the summer. She has been in a constant shed mode for the past few months and I read it could be lack of natural sunlight. She is near a window but that does not provide enough light.

Any thoughts on the best type of light to use and where to find it? I've googled that very question a zillion ways and come up with the same articles.