How are people getting such huge variances in the wattage drawn for the 5GH/s miners? Wired measured it to be 43W-44W, Ars measured it as 50W [1], while David f

How are people getting such huge variances in the wattage drawn for the 5GH/s miners? Wired measured it to be 43W-44W, Ars measured it as 50W [1], while David from Coding In My Sleep [2] measured it to be 30W. [1] http://arstechnica.com/gadgets/2013/05/weve-got-a-butterfly-labs-bitcoin-miner-and-its-pretty-darn-fast/ http://arstechnica.com/gadgets/2013/05/weve-got-a-butterfly-... [2] http://codinginmysleep.com/bfl-jalapeno-unboxing-and-demo/ http://codinginmysleep.com/bfl-jalapeno-unboxing-and-demo/ (see 7:33)