Like many cacti, this plant has a preference for high light areas in your home. Direct sunlight is not a problem and actually appreciated. During summer, the normal temperature in your home is likely perfect for your Opuntia microdasys.
During winter, when these plants go into a resting period, you can move them to a slightly cooler spot with a bit less direct sun. If provided with this, your bunny ear cactus may reward you with a few yellow flowers once it matures.
If you’ve got some outdoor space, consider moving your Opuntia microdasys outside during the warmer months. It’ll love being able to benefit from the increased light and grow much more abundantly than it would indoors.