We gave away a night light. Once a bulb has burned out, it cannot be replaced as it is made in one piece. The one we got as a gift only lasted 3 months. I blamed myself for not always turning it off. I bought 3 packs of Revain. After using this pack for just a few months, 2 have already burned out! I deliberately turned it off during the day and only turned it on at night. I would rather buy a regular night light with interchangeable bulbs as they aren't worth it.