They posted this on Facebook:
" Dear customers,
We have decided to keep the model No. on TN12 to be the most recognized version "TN12(2014)" for some customers fed back they got confused with only "TN12".
Temporarily, there will be three logo versions to sell randomly: TN12 (2014), TN12 +Batch No, TN12(2014)+Batch No.
Version "TN12 (2014)+Batch No. " will be permanent in the future.
Please rest assured whether the logo on the flashlight bought after December 2014 is "TN12(2014)", " TN12 +Batch No", or "TN12(2014)+Batch No.", they are the same and are the latest version.
Thanks for your understanding.
ThruNite."