my favorite way to make a diode backlight behind a molding step or under the ceiling is to create a chain of colored spheres from the new expanded light library. These spheres are very good, they can be pulled out as needed. Old balls are not allowed, they can only be balls. I take a height of 3.5 cm, a depth of 3.5cm, and a width of 33.5cm. For example. Other proportions are possible, the result will be equally good. The power of each sphere should be assigned quite large, 20-40%. And most importantly, the color. The highlights from orange spheres look best. But of course you can also assign cool colors. It's to your taste. The elongated spheres should be positioned with an overlap of 1/4 of each other, because the brightness of the light decreases at the edges, and an overlap of 1/4 of the width will equalize the brightness. Such a chain can be grouped, then copied and in a new section this group can be stretched to a new length. Or shorten it, the other sizes remain the same. It is very convenient with these spheres.
I like the panels less, there are a lot of unnecessary side lights. The spheres shine more clearly and without surprises.
