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E07 driver is FET+3x7135 , high discharge rate >20A 21700 / 18650 battery can get max turbo brightness
For XPL hi version，>20A discharge rate needed , Such as LS 20A 21700 or 30T or 40T 21700 （18650 VTC6 or 30Q）
For SST20 version, around 20A discharge rate needed, LS 20A 21700 recommended （18650 VTC6 or 30Q）
If you have no need for max brightness, LG 10A 4800mAh 21700 has the best Runtime , but the lowest turbo brightness
About Heat Dissipation Structure
E07 has very compact size，however the heat dissipation structure is very well designed.
With 5 deep heat sink trenches and 10mm thick integrated shelf , the light can sustain the crazy 7000 lumens brightness .
About thermal Step down：
E07 is one of the brightest single battery flashlights， It will get hot very quick on high brightness levels.
E07 set the tempreture limit to 50℃ by default. The light will automaticly step down when the body temperature is over 50 degree. The temperature can be configured by users if you read the manual carefully.
About conductive Springs and electrical wires：
The springs used in E07 are made of gold-plated copper alloy ，which have an extreme low internal resistance. The electrical wires are teflon silver-coated 18AWG wire. So E07 has a very well electrical conductive ability to maximize the Lumen output.
About the clip：
The clip is press-fit design. Please daub a little oil onto the clip when installing the clip onto the body, So the body wont get any scratched.
Accessories: standby O rings ; Stainless Steel clip; Landyard; Gift box
How to operate the light?
Fireflies uses free software distributed under the terms of the GNU Public License version 3
ROT66 Anduril code from toykeeper/flashlight-firmware