I have a dewshield mount lightbox made by Peter (see:
http://www.iceinspace.com.au/forum/s...ad.php?t=49736) surplus to needs. It has a 145mm opening, but you can increase that or reduce it various ways (I used to put it on a smaller diameter dewshield without adaptors, so long as it stayed flat on the diffuser surface).
Has the rheostat dimmer switch, and I will include a cigarette plug cable.
Because of it's volumetric size for Aus Post, I will price this at $50 including post anywhere in Australia.
It's a lightbox...see Peter's ad for pictures of what they look like