This lamp has replaced a space heater incandescent lamp so the energy efficiency is undeniable. Three way function could be improved. When switching to the second position, the light flashes a little brighter for a moment. Weird, but I can deal with it. UPDATE: The light bulb failed after 2 years of use. Another star away. As an LED, it should last significantly longer than the incandescent bulb it replaced. Dissatisfied.
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