Nope I hadnt noticed them.
However I have just found out that their units r avalon clones and are very power hungry...1250w overclocked!
Antminers use 400w overclocked.
Quote from their website:
"Typical: 1.2-1.4 GH/s at a standard 0.9V, with 2.05W pre GHs.
Low Power : 1 GH/s at 0.8V with 1.5W pre GHs.
Turbo: 1.5-1.6 GH/s at 1.0V with 2.5W pre GHs."
so for 230GHs it should be 575w - where did you see 1250w ?