Search query: smart switch without neutral wire

Product: Lutron Caseta Deluxe Smart Dimmer Switch (2 Count) Kit | Works with Alexa, Apple HomeKit, and the Google Assistant | P-BDG-PKG2W-A | White PEACE OF MIND: Set lights to automatically adjust with changing seasons so your family always comes back to a well-lit home; you can also enable the Smart Away feature to randomly turn your lights on and off to look like you’re home even if you’re away.
MOST CONNECTED: Caseta connects with more leading smart home devices – including Alexa, Apple HomeKit, the Google Assistant, Serena shades and Sonos – than any other smart lighting control brand
CONTROL YOUR WAY: Caseta puts the smarts in the switch so you can control your lights a variety of ways – via the free Lutron app, your voice, or from the wall. You can create personalized schedules to turn on, off, or dim lights at set times to best fit your everyday routines, or activate favorite lighting scenes with the touch of a button
RELIABLY SMART: The smart bridge doesn’t use Wi-Fi, so you get super-fast, ultra-reliable smart lighting that works right, without slowing your Wi-Fi down with more devices
SET IT AND FORGET IT: Always keep your smart light functionality. Even when the Wi-Fi goes down, there’s no need to reset your schedules and scenes or reconnect everything when it comes back online Lutron White

Product: Leviton DW15S-1BZ Decora Smart Wi-Fi 15A Universal LED/Incandescent Switch, Works with Amazon Alexa, No Hub Required, 1-Pack, White No HUB: Control your home from anywhere via My Leviton app - simply replace your existing light switch (neutral required).
CAPABILITIES: Schedule lights to adjust when you want, including sunrise/sunset, easily create lighting scenes, utilize the auto-shutoff feature and vacation (randomization) mode. Easy Wi-Fi lighting for your whole home
VOICE CONTROL: Works with Alexa and Google Assistant voice assistants (sold separately). “Alexa, Turn, Outside light on”.
WORKS WITH: IFTTT, SmartThings, August, Amazon Alexa, Google Assistant and more.
VERY SMART: Leviton devices are truly smart – your pre-set schedules, live inside each device, so your schedules always run as expected. Leviton White