Light: Most light conditions
Can tolerate most light conditions. Avoid complete darkness or bright direct sunlight (may burn your plant's leaves). The more it gets, however, the more it'll flower and the larger those flowers will be.
Water: 1-2 times a week
Peace Lilies are thirsty plants; their leaves will start to droop when they're thirsty. Don't be alarmed - a drink will perk it back up. As with all plants, the more light it gets the more water it will need - keep an eye open for its drooping leaves to signal when its time for a drink.