I'm interested to hear the differences between the older and newer versions of the SF14. While I didn't see the code listed in the original message, I see the code listed on the Amazon page for the SF14 $22.99 Flashlight with Battery combo bringing it down to $16.09. The code is under the "Special offers and product promotions" section.

This is from their Amazon description:

NOTE: We upgraded SF14 with better anodized shell, more reasonable construction, and more stable performance. It’s a better mini flashlight you deserve! SF14 is a small and bright flashlight with maximum output of 550 lumens and max beam distance up to 120 yard (by 14500 battery).