Very interesting lights, copied and pasted from Shoudian so there’s going to be some bad English
GF1 main features:
consistent silo integrated structure, to ensure the best heat dissipation structure
cylinder head multi-channel heatsink cooling effect
2-segment structure, Flashlight and tube tail one piece, cylinder head Flashlight by the the aluminum rod underrun made
using side dimming side button is responsible for switching and dimming function.
circuit stalls: high - medium - low - exposure flash, hidden mode [exposure flash
circuit with low voltage reminder, to remind the user to prevent over-discharge of the battery.
circuit physical anti reverse function
7.GF1 of volume and light weight portable
GF1 - 16340 version: head 25.2MM length 78MM, weight 61 g
GF1-18650 Version: head 25.2MM, length 111MM, weight 74 g
I have one,its my EDC most days since she arrived.Mine didnt ship with both options,but it is available.I went 18650 route for mine.Have to say,i did think i was getting both options in the box[add wasnt clear realy or i miss read,which says the adds not clear i thinks…whatever].The lights a cracker.I like it very much.Would be unfair to say what i paid and who from on another dealers thread,so i wont.Everyone thats seen it,always comment on how kewl it is and how much light it gives off.I havent reviewed a light and dont want to start realy.I havent the kit,time or experiance.Shadow products i think are that little bit diffrent and i like that aspect.I have a few now and they have all impressed me.