Amazon with Meross Direct has a 4-pack of the meross Single-Pole Smart Dimmer Switch for Halogen and Incandescent Bulb, Supports Alexa, Google Assistant and SmartThings for $66 - $10 off coupon (check green "Save coupon" box) - extra $13 off with code UUUBEUSM [Exp 8/14] = $43 with free shipping on $25+ or with Prime. Neutral wire required.