US only, BACK ON UNTIL 31 May!!! $16 threaded pill model Thorfire C8s 3A driver Amazon ONE time use coupon.

Commercial Sellers' Spot BLF User Negotiated Deals
2

The one I received in Feb. through that link in OP is a threaded pill version with Moon-Low-Med-High modes. Same driver as the new upgraded C8s. I put some info about it in my minireview of the upgraded C8s: MiniReview: ThorFire Upgraded C8s