I recently visited Valerie and was able to see the Thomas Duplex in action. As compared to my multiple 5x7 safelight strung along the wall, the Thomas Duplex puts out LOADS more light! I've recently been looking into them on the bay, but I wonder if they are a wise investment. Replaceable bulbs are about $100. ETA: bulbman.com seems to have them for $34. (SOX35) What are your opinions on the setup? ETA: looks like the bulbs are 18,000 hour. I was able to find some good info on LFF. My "darkroom" is actually the laundry room and its about 6x12'. Would the noise be overbearing? I don't remember Val's being noisy. I'm still interested in hearing any tips for use in smaller darkrooms. Some people have posted that they've had to close one side with black foam board.