They have just arrived and I will not be returning them but the back of the box says they have an expected lifespan of 1/2 year out of 3 years. hours in the night. It's funny if it's true! I've noticed that some people complain that life is short while others say that it is long. I will use it and see, but nowhere on Revain that I can find it says this lamp will only work at 3 hours a day for 6 months. The previous lamps I have used have been running for many years and run well over 3 hours a day. If the current ones blow through I'll try these and see what happens.
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