Agr
Quoted from cait001:LEDs behind the glass, always. Don't E-Z-Bake the artwork away.
Warm white frosted only.
Agreed, after 40 years or so, these backglasses deserve a break from the thermal cycle. Throw some warm whites in the backglass. The heat load difference (and power draw) is very noticeable...feel free to touch those LED's while they are on. Anything to preserve the artwork. The inserts, I could go either way...now as for in the visible regions under plastics...let's just say that's the only place in my collection I have incandescents.
