Dc Motor Speed Governor Regulator Dimmer 500w Digital Display Encoder Modulation Duty Cycle Frequency Switch - Motor Controller - AliExpress
Westek 6079BC Indoor Wire-In Full Range Replacement Dimmer, 500W - Walmart.com
Feit Electric 150W LED/500W incandescent Wall Panel Dimmer w/ On/Off Switch, Slide Dimmer, Dimming Indicator, and Fine Tune Button - Poli LED and Signs
LED Fantasy 0-10V LED dimmer 500W for LED Panels ETL Listed Single Pole 110-120 VAC No Neutral Required - - Amazon.com