About Heat Dissipation Structure 

E01 has very compact size,however the heat dissipation structure is very well designed. 

With 7 deep heat sink trenches and 15mm thick integrated shelf , the light can sustain 2300lumens Turbo for a long time .

About thermal Step down:

E01 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 by clicking the switch for 10 times.

Product Description:

• Luminus SST40W N5 5700K emitter with lifespan of 50,000 hours 
• Max 2300 Lumens
• Made of 6063 aluminum alloy 
• Body color:  Matt Black / Clear anodizing
• Black HAIII Anodising Surface Finish  /  Clear-ano HAII Anodising
• 1x 21700 / 18650   (excluded) 
• 6 degree angle TRI lens
• Toughened ultra-clear glass lens 
• Digital current regulation on lower brightness 
• IPX6 waterproof 
• with Purple switch leds 
• Size:  120mm(L )x 34mm(Head) x 26mm(Body)
• Net Weight: 96 gram    

Accessories:  standby O rings ; 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

• Single click -- On / Off
• Double Clicks--Max brightness
• Triple Clicks from Off -- Battery voltage Reading 
• Triple Clicks from On -- Changing over Ramping/Modes
• Four clicks -- Lock / unlock the light
• Five clicks-- Momentary mode
• 7 clicks -- Temperature Reading
• 10 clicks -- Thermal Configuration
• Hold switch to change brightness levels ; Loose switch to keep brightness level.