I didn’t get any reply from crnkin, can anybody help me understand his readings.
The highest I can get from my C8 is 25,000 Lux from my Lux meter at 1m.
How he got 115,260 lux at 1m where he shows 1807 from the meter.
measured at 8 meters? that would be 115648 cd
Answered it a few days ago
Chris
Thanks Chris. Somehow I missed your reply or else I’ll not post again about this.
Not that familiar at all with this Lux data and still learning.
No worries buddy!
Chris
wich AR lens for C8 besides de UCL?
kaidomain? fasttech ? IO ?
anyone has review of the other 3 ?
I have a Convoy C8 with a Qlite, a Xpg2 on a noctigon and an AR lens. Today I got a duel stage Xpg reflector to try out. Unfortunately when I put the reflector in the emitter was pulled off. I think the hole for the xpg is so tight that it caused the problem. I would like to replace the XPG and try the reflector again but don’t want to have the same problem. Any sugestions?
I just built an XPG2 C8 with OP reflector from KD and a 5xAMC driver from FT. Well after tweaking the pill height vs reflector it gave out a bright and well focused beam. Smooth too. I don’t have a lux meter but after a try outside, C8 vs Armytek Predator 2.5, I can’t say C8 is much behind of Predator. So it appears the $60 difference is all for the build quality I paid for Predator. I feel somewhat guilty. 
I can justify $40 quality light vs a C8, due to better builds, water resistance, body strength, modes, efficiency etc. But if you want a small size thrower, a C8 can still beat the lights a few times more in price.
I just built an XPG2 C8 with OP reflector from KD and a 5xAMC driver from FT. Well after tweaking the pill height vs reflector it gave out a bright and well focused beam. Smooth too. I don’t have a lux meter but after a try outside, C8 vs Armytek Predator 2.5, I can’t say C8 is much behind of Predator. So it appears the $60 difference is all for the build quality I paid for Predator. I feel somewhat guilty.
I can justify $40 quality light vs a C8, due to better builds, water resistance, body strength, modes, efficiency etc. But if you want a small size thrower, a C8 can still beat the lights a few times more in price.
I was wondering have any of you guys found a replacement tail switch for the c8 that can handle higher amps? I have ruined two of them with a build I am doing with a red phlatlight direct driven from ncr18650pd battery.
Thanks for the link!
LMC12XML2 today. And partly because of your short review and posts. Thanks Tim
got my first c8 the other day, the banggood 8.88 xml t6, and i like it.
its bright, throws well and has usable spill, the only downer is a hollow pill?? star only sits on a small edge so i wouldn’t run it on high for a long time. oh and the next mode memory, i hate it its s frustrating its my first light with it |(
i also have the convoy c8 on the way. im very interested to compare the 2
I have both the C8 from Banggood and the Convoy. You will be much happier with the Convoy. The quality is much better.
for 8 bucks i like it :bigsmile:
i just posted in the bangood 7.99 c8 thread, im interested to see weather yours has a hollow pill and what amps yours pulls on high?
I agree it’s not bad for 8 bucks. The pill is hollow and I pulled the switch out and it looks kinda cheap to me. I tried getting measurements on high and the best I got was .87A but my DMM is a turd from HF so I have no idea if thats acurate.
The XM-L2 U2s finally arrived so I stuck one in direct drive in a C8:
Stock C8 (Ultrafire, XML on Alu board) was ~22K lux (700-750 lumen)
With XM-L2 U2 on copper:
Before de-dome was ~42K lux (1300-1400 lumen?)
After de-dome is ~85K lux
After de-dome without the front lens is ~95K lux
Current reading was ~3.5 amps but probably closer to 4 without the DMM… I will try compare lux readings with and without the MM.
Over 10% is lost due to the front lens alone, time to get some AR coated lenses (99% transmittance) for them I think as well as better switches (shorted the battery and got a puff of smoke from the one I was using)
Will stick up results for the C8 XP-G2 once I get around to piecing it together.
Manual,
When you say direct drive, meaning VBat+ on LED+ and VBat- on LED-?
and wow! 42K, 85K and 95K lux! Is that 1 meter to a Lux meter readings?
Yip… other then the switch and contact board the battery is connected strait to the LED. Measurements were taken at 4.56m so multiplied by 20.8 to give lux @ 1m.