Partial, indirect sunlight is the best for this succulent. 3-4 hours a day, preferably in the morning when the rays are less harsh, should do the trick. Too much direct sunlight might leave the plant with a sunburn, turning its lovely green into an unattractive brown.
East or West facing windows are ideal locations for your String of Pearls.
During the hotter months, it’s best to protect the plant from the afternoon sun which can be too intense.
If natural light is limited, grow lights can be a fantastic alternative. Just remember, moderation is key.