This is the Convoy S21A flashlight with the updated v2 Convoy driver. It’s like an S2+ enlarged to take a 21700 cell.
This driver is similar to the old Biscotti driver in that it can be configured to your needs, but it also has thermal regulation and no visible PWM.
The light has a copper DTP board, anodized tail threads, a smooth reflector, and an AR coated glass lens. It takes a 21700 cell.
Osram versions come with a smooth reflector and may not have a perfectly uniform beam pattern.