There are a new breed of low power LED puck lights available which make use of 433 Mhz radios for remote control. However, they currently do not integrate with any sort of Micro allowing for more accesible remote control.
This project connects to the provided remote and adds the ability to put a motion detector into the system which will turn the lights on or off based on movement and available ambient light. The idea is to use the puck lights remotely without having to run power for stair lights while achieving a viable benefit.
https://www.lowes.com/pd/Energizer-Remote-Controlled-2-Pack-3-in-Battery-Puck-Light/1000268307
Basically, these are battery operated with a 433Mhz receiver, and a 12V remote that has two buttons, on and off. By powering the remote with a 12V source, and then regulating the power down to 5V for the micro, you can simply run two leads from NPN transistors to the two buttons to act as remote triggers. Add in a IR motion detector and a photocell, and you can remotely trigger the lights on activity. Add in a micro that can easily receive events from the internet and you can even turn the lights on or off from anywhere.