Anyhow; aside from painting gemstones (which I will do as I paint the odd WH40k figure here and there), I was interested in how these paints function for lamps and warning lights. I’ve used the SU-122‘s interior light and the Electric Mule‘s warning light to test them.
I’ve simply painted the base of the transparent light fixture with silver, and applied the Citadel paint on the top of the light. The paint flowed around the raised details depicting the protective wires, so I did not have to paint them separately, and also gave a nice, blue glass finish. It’s a perfectly good way to stain transparent light fixtures if the surface is not too large. Even with dedicated, transparent paints it’s a pain to achieve uniform coverage, so don’t expect perfectly even finish on large transparent parts. Since the depth of color of any glass object (such as a headlight lens) depends on the thickness, this uneven coverage actually produces quite a realistic effect.
In this instance I’ve used a yellow base color with the red technical paint applied. The effect, again, is pretty good, since the yellow + red gives a nice, uneven orange, which looks quite realistic as a translucent warning light.
In short: if you have these paints lying around, they are perfectly good for colored glass lenses, screens and warning lights. I’m sure Tamiya’s and other manufacturers’ transparent paints do the job similarly well, though.