Unfortunately 2 bulbs didn't work. The other bulb had silicone in the threaded portion of the bulb, which prevented the bulb from touching the bottom of the candle so it could ignite. I scraped off the silicone and the bulb worked. But the other two just didn't work. Otherwise the lamps are good, so the rating was satisfactory. The packaging was excellent so I can't be sure 2 bulbs won't work.
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