Costco has 2-LED Light Switch with Dimmer for a while, we planned to replace our old 1979 dinning room dimmer for a while now, it’s time to replace it. The process is quite simple, just make sure to turn off the breaker for the switch or work with it very carefully with gloves and stay away from shorting any of the wires through your body. There are only 2 wires to disconnect from the old and reconnect with the new.