https://www.cnet.com/news/youre-running-out-of-reasons-not-to-get-smart-lights/

Consider Philips Hue, long thought of as an expensive option in smart lighting. That's certainly true if you want every light in your home to change colors, but if you're just looking for a modest setup with a few, non-color-changing bulbs, the buy-in is much more manageable. As of writing this, a four-bulb Philips Hue White starter kit with the mandatory Hue Bridge costs $90 on Amazon. From there, additional bulbs cost $15 each.

Maybe that still sounds like a lot, but keep in mind that switching from a 60-watt incandescent to a 10-watt LED that's just as bright will knock about $6 off of your energy bill each year, on average. If you're still using outdated bulbs like those, that four-bulb Hue kit would pay for itself in less than four years.