With this glass table lamp you create your own ambiance wherever and however you want! Indoor or outdoor, the table lamp is the best companion for cozy evenings. The table lamp has a timer and will shut down after 4 hours. It uses three AA batteries (not included), good for +- 120 hours. The bulb can not be replaced. USP's - Warm White light; 2700K - Timer: 4 hours - Not Dimmable