【convoy】H4 and B35AM options are updated

If your measurements are correct, the T3’s new driver has a very poor efficiency :open_mouth:
T3 100Lm / 2,1A
T2 115Lm / 1A
Is it possible that you accidentally swapped the 14500 / AA measurements?

I wanted to buy from the new driver so far, but this is disappointing. I also don’t like the fact that the output is as poor with 14500 as with AA.

Hello forum,anyone have experience with SFT70?,i’ve seen video of SST70,but none of the domeless version. I have one on the way,along with convoy xhp70 4,8a6v boost driver. Planning to set the led in my M21d. Any insight would be very helpful
Cheers

Sorry for the confusion. I don’t have reliable way to measure lumens, those are just number relative to each other.

It should be interpreted this way:

  • T2 LH351D 14500 has 189% of T3 219B 14500 brightness.
  • T2 LH351D AA has 115% of T3 219B AA brightness.

They aren’t comparable in any different way:

  • They doesn’t mean that output on different battery type is equal.
  • They doesn’t mean that output on 14500 is brighter by 74%.

But how can the T2 AA be brighter on less than 1/2 the amps of the T3 AA? 1 amp vs. 2.1 amps? Think this is what we are confused about.

Affected by the accuracy of the chip and the sensitivity of the human eye to the difference in brightness. I estimate that many people do not feel the brightness change between 1% and 3%.

i will have sw519a and BM35AM available after one or two months,
I got some samples.

Great to hear, what CCTs are you planning to offer ?
All 9080 color rendition ?

The 219b is that inefficient compared to the lh351d.

Awesome Simon!

This is great news

Also, any news on the green reflecting AR coatings and/or ultra clear low iron glass?

I had two and they both burned very quickly, even the second at only 5A

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I had two and they both burned very quickly, even the second at only 5A
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O ok, did you get them installed by convoy or did you reflow them?

Thanks for the reply Pacolux

Reflow

JaredM's findings indeed agree with what I also found in a CSLPM1.TG build I made long ago, soon after led4power started listing these leds at his store. I ended up driving the CSLPM1.TG a liitle above 6.5A or so (measured), by means of modifying the Convoy regulated linear “8A ramping driver” replacing its stock R005 sense resistor with a stack of R010 plus R025 plus R050 in parallel sense resistors.

led bare convoy reflow on mcpcb xhp50.2 6v. I surely did something wrong

Is Convoy M21B GT-FC40 thermoregulation working?
Just yesterday saw this post on reddit, guy got 80C on fins, is it one off, or is there something wrong with thermal control on it.
(link is external)
(https://www.reddit.com/r/flashlight/comments/qy72hy/she_is_hot/(link is external))
I'm planning to buy two of them for bike for off road trip (so I won't feel the heat, but I still can be burn, when trying to take it out, or to turn it off, after an hour or so of it working).
And well it can harm the battery and led too.

In that picture most stupid thing is to cover flashlight cooling fins with paper. On my M21B FC40 thermal control work fine. Without cooling the temperature never excited 60-62°C
From reddit post

If you dont go with second turbo it is safe. Also at 35% temperature go max around 55°C. With cooling or on bike 35% or 50% is safe also turbo without any second activation.

The product page says it’s limited to 55C. If yours reached 60-65 that may not be outside of safe temperatures, but it doesn’t mean the thermal management is working correctly.

I’ve seen reports of L7 and 3X21A having the same issue in their respective 1Lumen reviews. This trend of nonfunctional thermal management in Convoy lights is concerning.

I tested now and at turbo maximum temperature was 61°C at room temperature of 23°C without any cooling just stand up flashlight. Yes it is hot on touch. Before I was tested thermal regulation and its work. With cooling with fan I can reach 1500 lumens from FC40 stable, if I turn off cooling output will go low to 35%

OK, will just buy then and test them (got 2 multimeter with temperature probes). I always tested the max current, and the parasitic drain, and AUX drain, never tested the temp regulation, but maybe I should do it to. With Anduril UI, you just have to calibrate the temperature sensor yourself, and you can set the temp ceiling yourself. But here you just have to trust it.