Difference between item category "light" and "lightbulb"

When I set-up an item I can pick a categrory. In the list I have light as well as lightbulb.

What is the difference and when should I pick which?

One difference I have noticed is that those items (points) which have “light”, will show a grey lightbulb in the UI when the light is off while the items with “lightbulb” always show a yellow lightbulb - no matter wheter they are on or off.

That’s about it, really. This is a legacy of the icons we had with OH1 that were added to for OH2 etc.

Ok, thanks for the explanation. So I will always use light since it has more functionality compared to lightbulb.