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Once it cools, it should function properly again. A lava lamp may overheat in eight to 10 hours, depending upon the bulb and brand of lamp. Use the lamp for less than eight hours at a time for best results, allowing it to cool to room temperature before using it again.
Manufactures estimate the lamp life at between 800 -1000 hrs. It is most important to know that strength. Lamps are at peak strength for 400-500 hrs. At Perfect Tan lamp hrs. are posted at the front desk and updated information is always available, just ask any employee at the desk. Perfect Tan changes lamps between 250 and 300 hours.