Haworthia species like bright light, but not direct sunlight. These grow in similar conditions to other succulents. In their native environment, they are often found in the shade of a rock or other object. They do best in a room with a window facing east or west to provide bright light for a few hours a day.
Water evenly and generously in the summer, letting the soil media dry out between waterings. In the winter, reduce watering to every other month. Never allow water to collect in the rosette.