Godox TT685 N ( Flashpoint Zoom R2 TTL) Tear Down and expert opinion

Godox TT685N (Flashpoint Zoom R2 TTL) I buy here (coupon TT685NS ) Godox TT685N iTTL Speedlite For Nikon review and unboxing Godox TT685N iTTL Speedlite For Nikon detailed text review Main Features: Compatible with iTTL autoflash, fit for Nikon DSLR series cameras Two transmitting styles: optic and builtin 2. 4G wireless, offer creative light effects Can be both master and slave flash Full TTL functions, such as HSS ( max. 1, 8000s ), FEC, FEB, FE lock, front and rear curtain sync, modeling flash, etc. Dotmatrix LCD panel with backlight, easy to operate with 4 function buttons Support TTL, M, Multi, S1, S2 modes 20 200mm auto or manual zooming Compatible Cameras: Nikon DSLR cameras (iTTL autoflash) Guide No: 60, 190 (ISO 100 in meters, feet) Flash Coverage: 24105mm (14mm with wide panel), Auto zoom (flash coverage set automatically to match the lens focal length and image size), Manual zoom Swinging, t