Hi, I’ve had the Fireflies E07 for almost a year now, in particular:
- Raw Aluminum
- CREE XPL HI V3 CW 6500K
- Blue secondary LEDs
I use it with 21700 batteries:
- Samsung 40T (4000mah) : maybe just a little brighter on the turbo mode?
- Samsung 40G (4800mah) : it probably lasts a little longer but nothing too crazy
REVIEW
I use it for cycling.
The finish is quite good, well machined, no sharp edges.
The raw version is clear anodised and it´s quite durable but I haven’t been very nice to it.
The lanyard is totally useless, it is very bad quality and doesn’t even fit in the hole intended for it. I use a very good one that comes with Garmin. I had to thread it using a thread. Another option would be to use the groove intended for the clip
The clip looks good, it´s tight and springy but I don’t use it
The UI has a million options and you can configure the number of steps in ramp mode which is awesome, but I find it too difficult to operate from a bicycle.
It´s more on the floody side but still throws a lot. For me this is the perfect balance.
The amount of power it has it amazing! how such a small thing can make this?! Seriously. The LEDs are incredible, and the neutral white light is wonderful.
I have it set up with 5 ramp modes normally on the 2 and 3 for climbing or iluminated streets and 4,5 for descending. If I do so, I can easily get 2 hours with one battery.
I would use the bike flasher but it´s quite difficult to access it from the handlebar so I eventually use just the normal modes and change mode when I climb or before starting descending.
It gets really hot in turbo mode after 30”, but I don’t really use it on turbo mode or even grab it in my hands hehehe
It´s remarkably small for it´s power, and quite lightweight (125g without battery).
All in all. It´s not only the best flashlight I’ve ever owned but the best I’ve ever used, for my purpose, cycling. I also use it for camping and hiking but on the very low output modes. It´s fun to point it to people on the street, they don’t know what is going on when you do hehehe but I don’t do it too much, I’m not a terrorist.
THINGS TO IMPROVE
- RELIABILITY
- Decent lanyard
- Option for mounting a remote control
- Easily programmable UI… it would be awesome to have a smart-flashlight that you could configure with from your phone via bluetooth. There are arduinos smaller than 22*22m that could fit on a 21700 flashlight and 5*5*1mm bluetooth modules, the flashlight would only need to be 5mm longer.
The configuration APP, could well be a webapp with just the possible functions and click combinations/sequence. It could make for a very awesome project. I would be totally in if someone did it.
Imagine you can have only the modes you like and if at some point you need one in particular, just take your phone and enable it right away.
Another cool option would be to make it ant+ smart light compatible but that would be more bicycle specific…
RANDOM ISSUE
I’ve been in love with this flashlight for the past 10 months but on my last rides I’ve been experiencing some very frustrating issue… sometimes, randomly, it goes into weird random blinking mode and the button stops responding or at least doing much. It goes to level 1/5 and starts blinking randomly, something similar to the candle mode but more random. Sometimes if I take the battery out and put it back it goes back to normal, other times it just doesn’t. Then I leave it alone for a while and put a different battery and it goes back to normal. After a couple of days I put the previous battery and it works fine.
To be honest I don’t know what the heck is wrong with it. I dissaembled the bezel and the connections on the main board seem alright. I don’t know what to do…
I’m an expat in Australia and I don’t have proper tools…
I guess by now warranty is over… any suggestions?