Quote Originally Posted by Zandor
well that would restrict air flow would it not?

2 90 deg will work too, light does not bend well around corners with out reflection.
Exactly.

You can also get a dryer duct, and make a 180 degree "bend" with it. That will make it a very effective "light trap".
turtle420 Reviewed by turtle420 on . Light Proofing Hey guys I was just wondering what way you keep the light from getting out of the intake and exhaust fan holes in your boxes. Do you think something like this might work? The drawing is just a black corrugated tube with black inserts in it. Rating: 5