Have you see an electric bulb that uses Bluetooth? This may sound strange to some people due to the fact that it's their first time of hearing or seeing a thing like this.
Philip Hue bulb is a bulb that has an inbuilt Bluetooth system that allows you to control the bulb at a maximum range of 20 feet.
Philips Hue smart bulbs are getting what may be their biggest upgrade ever: many bulbs will now ship with Bluetooth built in, allowing them to be set up and used.

Adding Bluetooth to the bulbs comes with some big benefits and really only some minor drawbacks. The major benefit is that anyone who owns a smartphone will be able to screw in one of these light bulbs and control it directly from their phone.
That’s great for the Hue line and for buyers — it’s now far easier to get started with Hue bulbs, because you don’t need to commit to buying and installing a hub before you even know if you’re happy with the bulbs in the first place. Many other smart bulbs have taken this approach, using either.....continue>> https://www.dominzyloaded.com/2019/06/have-you-seen-electric-bulb-with.html?m=1

nice one...the kids would love this