Transparent lid project box?

Depending on what it is, and I suppose whether this is a single unit or not, you could simply hack out part of a metal or plastic box and install a piece of plexiglass. I did this for something years ago, it was easy to cut out the plastic from a Radio Shack box, with the leds mounted on the circuit board and this window making it nice and visible when the unit was on.

Michael

The last time I bought something like that it was classed as a "Plastic NEMA box". You might find it here if you want to jump through their hoops:

Nothing that large. All Electronics has a polycarbonate, clear case *and* clear lid. 4.71" x 2.55" x 1.57" high "Threaded integral brass bushings. Screws included." made by Hammond Mfg. cat# 1591-CTCL $5.95

Also, identical to above except transluscent BLUE case & lid (#1591-CTBU) or transparent RED case & lid (#1591-CTRD)

I got one of the red cases (the red is dark, "ruby") on close-out from somewhere else a year or two ago, specifically so that 7-seg LED display would show without my having to hack the case.