Review: Convoy S2 2800mA U2 1B from Fasttech

did you ever try these reflectors in the s2? i have the convoy s8 and i would like to try these reflectors if they will work.

Just flash another firmware, maybe JohnnyC’s Star, then it will do high pwm, no more buzzing. you can then also flash an off-time firmware version of that, but you have to add a capacitor for that too).
Exctracion of the current fw is not possible, thats why DrJones made Nlite.

I run the Star Fw (on time) on my S2, with 2800ma Nanjg 105c, turbo timer 90 seconds to half power due to getting it to hot to hold.
at 50% after the turbo timeout i can hold it pretty comfortable for long times(although its still warm) .
My modes are Moon, ~10% and 100% (fallback to ~50%)

Had one of these for about a year and find it very useful for walks in the dark. The only downside is the heat that results whilst on high. This renders High of limited value. I’ve been tempted to get a 2.1A Roche F12 as an alternative. A 2.1A S2 would also be a wise choice and better value.

This happens to be my very first decent flashlight. Thanks for sharing Bort :)

I wonder if there is a black model somewhere? They should have launched it in black, together with gun metal gray model just like S2+. I prefer S2 over S2+.

intl outdoor has them ” as host only “:http://intl-outdoor.com/t14-18650-flashlight-host-p-805.html
price is steep, gray you buy at ”fasttech”:http://www.fasttech.com/products/0/10002463/1277401-convoy-s2-diy-edc-led-flashlight-host for USD 8.78, almost half te price

my s8 is ok for walks but, i wish it had a little wider flood and a little more throw, guess you cant have everything. not sure if it has the same reflector as the s2 but, the flood almost seems as bright as the spot. and the flood at 5 to 10 feet is only about 3 or 4 feet circle and it stops sharply.

i have the 2800ma version and it gets pretty warm after 90 seconds, but i think im gonna bump it up to 3600ma just for fun…. :slight_smile: i want to change the led aluminum sink to noctigon, does anyone know if it just has thermal compound?

Nice find! But I will doubt anyone will pay $16 for that. For that price, I will rather get BG S3 black at $9.99.

The price is nice for a ready to run light. Great photography!

Bort, what was your shipping time?

Never BG again. My S6 was Banged up Good :open_mouth:

It took about 2 weeks, but i bought it over a year ago

Negative, I never got any in

I did however change the firmware…I put STAR with the ability to auto throttle and after 60 seconds drop from “Turbo” to a lower mode as to not overheat, still runs at 2800mA but instead of running wide open and getting INCREDIBLY HOT it gets warm then throttles back, the light slightly dims when it drops back but no longer overheats

long term use update above

do you know if they will work or have the same threads?

i dont have the flashing tools yet, but i have a qlite 3.04a driver with star firmware on the way along with a noctigon sink. i dont run my s8 on high very long. its plenty bright for close up stuff on medium, but outside for longer distance, i always want just one more high mode for a few seconds. i wonder how many lumens the xm-l2 2800ma is?

i have ordered many things from bg and never had a problem with them. they have good customer service. the convoy flashlight i ordered got to me in 9 days and i live one state over from you. most things i get from bg get here in at least 14 days.

thanks bort!

Great job for your initial review, you’ll only get better :smiley:

No problem, i just just put another 3 hours of use on it today, did some spray foaming of gaps in the basement and elsewhere and starting installing a new washroom subfloor

honestly I don’t know…I was going to get one, but never got one so I don’t know

According to the Cree Product Characterization Tool an XM-L2 U2 at 2.8A (85ºC) produces 937.1 lumens, assume about 75-80% OTF and you get about 700-750 lumens

If you get standard star fw, its a throttle after 120 seconds, it will throttle back to around half power after that. I found 120 seconds to long, my s2 got uncomfortable to hold. I use the same throttle back value, but after 90 secconds on full power. Now it stays in the comfortzone ( in winter i would really like it).
60 as WarHawk-AVG uses is rather quick and won’t heat it at all i suppose.