There is more choice in smart lighting than there needs to be, but only a handful of factors change how it feels day to day. These are in the order we think matters.
1. Switch or bulb
As covered elsewhere, we almost always start at the switch rather than the bulb. The reason is simple: the physical switch on the wall is not going away, and the moment somebody presses it a bulb-based system stops working.
2. The dimming curve
Two products both marked "dimmable" can behave completely differently at the bottom of the range. Some start stuttering or cut out below about 20%. If you want a very dim hallway light at night, this is the one that decides whether you get it.
3. Color temperature range
Fixed color temperature is cheaper; tunable costs more. Our suggestion is to spend it on the rooms you live in and use fixed in the closet, the garage and the basement. Do the whole house in tunable and most people end up using two or three settings anyway.
4. Is it actually bright enough
Smart fixtures frequently put out fewer lumens than whatever they replace. Discovering the room got dimmer after the upgrade is a common disappointment. Check the output of what you have now, and do not go by wattage.
5. Compatibility
Whether it joins the system you already run. This is last because if the first four are right, compatibility almost always has an answer — through a gateway or through Matter.
A cheap test
Buy one, put it in the room you sit in most, and live with it for two weeks. Two weeks surfaces every problem that is not on the spec sheet, and then you can order the rest with some confidence.
