I bought dimmable LEDs and they worked with this dimmer. They were Phillips A19 dimmable LED bulbs which I got at Home Depot. No flickering or any other problems. The fan timer is awesome. Using LEDs is a hit or miss, they usually require a special dimmer, I’d recommend trying out a few different bulbs to make sure they dim properly. Also, make sure every light bulb socket has a bulb in it, the switch might act up if a bulb is missing
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