The cell that you are linking to isn't the 3400 mAh version, it's the 3600 mAh version.
Secondly, the tester, (I'm assuming HJK since that site
Pm repliedInfinitusEquitas Today, 07:49 AM
From the picture of the tear down they are using the Cree XB-E or Cree XB-G High voltage LED's. Those arent really that efficient compared to othersmds82 Today, 07:34 AM