Just a quick update, since this came up in a different thread this week…
There are some battery powered small lights which have an IR remote. These are usually pretty dim, you’re lucky if they’re 50 lm each. And they eat up batteries pretty fast. But they do exist.
As long as the remote is an IR remote (not an RF remote) you can probably control it with a harmony home hub. So if this is a room where you already have a harmony to control the home theater, you could add control of these kinds of lights and automate it through SmartThings.
( The other thread was discussing some display cases in an entertainment room where there was already a harmony.)
Because this is an IR signal, the harmony hub, or one of its IR blaster’s, will have to be line of sight to the light. But it should work.
I’m using this with some flameless candles and it works well for what I want. Home Depot often has a selection of battery operated lights with remotes, and then you can check to see what kind of remote it is. There are some available on Amazon, but the product descriptions aren’t always accurate, so you may need to return them if they’re not a remote that’s compatible.
Again, this isn’t going to work for a regular reading light or anything brighter. You’re talking about the equivalent of 5 to 15 W in an old style light. But it might be an option for closet lights or night lights or party lights.