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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.
While extended lamp life is a plus, don't let lamp life itself be an overly huge factor in selecting a projector. Certainly a longer lamp life can mean lower cost of ownership. However, if you get 2,000 hours out of a lamp it will deliver 1,000 two-hour movies. If the replacement lamp is $400, that is about forty cents a movie. If you watch thirty movies a month, your lamp cost is about $12 per monthâthe cost of a medium Domino's pizza. Compared to the cost of renting or buying those thirty DVDs a month, the lamp cost is almost invisible.