Pass & Seymour 90610IV Single Pole Rotary Dimmer, Push On/Off Switch, 600-watt, Ivory It is 600W, Ivory, Single Pole, Rotary Dimmer The dimmer is Preset, Push On/Off Switch, Clam Shell It is 600W, Ivory, Single Pole, Rotary Dimmer, Preset, Push On/Off Switch, Clam Shell