I have the spec details document.
LTC Mode:20-25W
I hate to tell you you're wrong, but you are. These use 9ish Watts in LTC-only (not overclocked) and around 11 overclocked (after bad, bad PSU). Deduct the fan and you safe another 2W or so. Didn't try mining btc, though. I don't see any sense in it - unless you have free electricity or a broken heater

1) Yeah, we run ours in LTC mode w/o the fan, OC'd to 925, and they pull 5-6W/each.
2) While I don't shun them for being a scrypt ASIC, I do see Con + Kano's point. The ONLY point of these things is to mine Scrypt. BTC on these is a joke. All convos surrounding them should be moved to the alt-coin sections.