LUTRON PD-3PCL-WH Caseta Wireless Plug-In Smart Lamp Dimmer, White, Works with Amazon Alexa Price: $54.95 (as of 18/04/2019 00:37 PST- Details) & FREE Shipping.

Provides the best dimming performance for LED bulbs (compatible with 800+ bulbs – for more specific details view “technical specification” below)
Up to 300 watts of incandescent or halogen, 100 watts of dimmable LED/CFL
Turn lights on/off or raise/lower to adjust brightness. For added convenience, control your lights with a Pico remote control (sold separately)

Usually ships in 24 hours