directional light value changes after opening properties

[Gijs]

Create a directional light
render
open light properties
render again: you will notice a much brighter image.

I figured the light value is 1 until the dialog is opened, then it becomes 30

[joe_b]

directional light value changes after opening properties

yes, I've noticed this. I'll put it on my list of stuff to fix

[edit]
Yes you are basically right, some of the default light settings do not take effect until you open the light properties dialog. It was an oversight of mine. Good eye