How long can i leave my lava lamp on for?

Question:i got a lava lamp a few years ago, i heard u cant leave them on overnight but for how many hours CAN you leave them on for?

Best Answer - Chosen by Asker: i got a lava lamp a few years ago, i heard u cant leave them on overnight but for how many hours CAN you leave them on for?

My instruction sheet said no more than 10-12 hours.