tip: adjusting lighting %

[Doug.S]

When you want to adjust a light's brightness...after selecting the light from  the list (like 40 Watt...etc) ,

dbl-click on the light source definition name and it opens another window to adjust brightness %  (light source properties; scale)

If you use the scroll arrow you can go down to 5% but if you enter a number, you can go down to 1%