[Review] Convoy M3 (Cree XPH70.2 , 1 x 26650) #Update 01.02.2020: Modded with Thermal Pads - New Turbo Graph added!

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EasyB
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bilakos10 wrote:
I made sure to align everything so that the conductor sits directly on top of the thermal

Do you mean the inductor is sitting on the thermal pad material? Nice result.
Di_Joker
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bilakos10 wrote:

Thermal Pad Mod

Today I decided to do a little Mod on the M3.
I received a thermal pad from eBay (they are sold for dirt cheap). Cut two strips, split the strips in squares, stacked them and placed them inside the driver’s groove.
I made sure to align everything so that the conductor sits directly on top of the thermal pads.

This time stepdown occured at 2:40, which means that I got an extra minute of Turbo sustainability Smile

Please inform Simon about this. Perhaps he will change his build standards and will produce flashlights with improved driver cooling.

Sorry for my poor english.

bilakos10
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ApexProxy wrote:
First off thanks for the insightful review!

I ended buying 2 of these but with all the craziness going on in the world it’s been a month and no trackable movement so now I am getting antsy and want to start planning mods haha. Anyway, based on relative size to the diode I guess the MCPCB to be 20mm in diameter and I was hoping someone may be able to confirm? Also could anyone give me a model number from the driver if one can be found?

Long time lurker BTW, this is one of the first times I couldn’t just dig up the info I needed through searches lol.

Here’s the driver used by the M3: https://www.aliexpress.com/item/33021024834.html?spm=2114.12010612.81483...
I’ve measured its diameter to be 25mm-26mm, which matches the manufacturer’s description

EasyB wrote:
bilakos10 wrote:
I made sure to align everything so that the conductor sits directly on top of the thermal

Do you mean the inductor is sitting on the thermal pad material? Nice result.

Yes, pretty much I’ve aligned the inductor to sit on top of the thermal-pad cushion I created.
Funtastic
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That’s weird yours steps down originally at 96sec

Mine steps down at 2m 30. I guess it will depend on the outside temp

Texas Ace Lumen Tube calibrated with maukka lights

New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)

YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)

pennzy
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Thanks for your review. Will this flashlight sustain 1600 lumens after turbo step down or will the thermal protection continue to throttle it further? Has Simon adjusted the thermal regulation since the first releases to allow longer turbo? Also, is the 6500K white or blue. Thanks for any help.

ch1ir
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Thanks for the review l, definitely one. Of the reasons I bought the light, mine steps down on turbo after 4 seconds, I’ve been working with Simon on the issue, I’ve tried 5 different high drain cells that work on all my other hot rod lights, I’ve had 2 new tail spring board replacement sent and installed, it actually acted worse with the step-down, shutting the light completely off, he sent me a driver to install and I’ve never done a replacement with an electronic switch and feel it is beyond my skill at this point.

Does anyone have anymore recommendations on what the next step is, thank you and enjoy your Sunday

Emisar D⁴, Astrolux C8, BLF A6, Sofirn sp36aV2, Reylight Mini Pineapple, BLF 348 KillZone, Lumintop IYP07, Emisar D18, Boruit D10, Manker e01, Ultrafire z1, Massdrop titanium AAA, Astrolux HL01, Armytek Wizard Pro Nichia, Tacklife LFL3A, Astrolux FT03, Zanflair T1

Funtastic
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ch1ir wrote:
Thanks for the review l, definitely one. Of the reasons I bought the light, mine steps down on turbo after 4 seconds, I’ve been working with Simon on the issue, I’ve tried 5 different high drain cells that work on all my other hot rod lights, I’ve had 2 new tail spring board replacement sent and installed, it actually acted worse with the step-down, shutting the light completely off, he sent me a driver to install and I’ve never done a replacement with an electronic switch and feel it is beyond my skill at this point.

Does anyone have anymore recommendations on what the next step is, thank you and enjoy your Sunday

You should have been sent a replacement instead of agreeing to a new board.

I use circlip pliers to undo the ring around the side switch. It’s easy from there, it just slides out between the two cut out grooves

Texas Ace Lumen Tube calibrated with maukka lights

New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)

YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)

ch1ir
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Funtastic wrote:
ch1ir wrote:
Thanks for the review l, definitely one. Of the reasons I bought the light, mine steps down on turbo after 4 seconds, I’ve been working with Simon on the issue, I’ve tried 5 different high drain cells that work on all my other hot rod lights, I’ve had 2 new tail spring board replacement sent and installed, it actually acted worse with the step-down, shutting the light completely off, he sent me a driver to install and I’ve never done a replacement with an electronic switch and feel it is beyond my skill at this point.

Does anyone have anymore recommendations on what the next step is, thank you and enjoy your Sunday

You should have been sent a replacement instead of agreeing to a new board.

I use circlip pliers to undo the ring around the side switch. It’s easy from there, it just slides out between the two cut out grooves

Thank you, I appreciate this, I will attempt to do it tomorrow after work!:) Have a good rest of your evening

Emisar D⁴, Astrolux C8, BLF A6, Sofirn sp36aV2, Reylight Mini Pineapple, BLF 348 KillZone, Lumintop IYP07, Emisar D18, Boruit D10, Manker e01, Ultrafire z1, Massdrop titanium AAA, Astrolux HL01, Armytek Wizard Pro Nichia, Tacklife LFL3A, Astrolux FT03, Zanflair T1

Funtastic
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pennzy wrote:
Thanks for your review. Will this flashlight sustain 1600 lumens after turbo step down or will the thermal protection continue to throttle it further? Has Simon adjusted the thermal regulation since the first releases to allow longer turbo? Also, is the 6500K white or blue. Thanks for any help.

Get the Convoy M3-U, it’s the new version with USB C charging, it’ll handle turbo better with it’s new driver design. Step down is set at 50°C instead of 43°C on this old model.

I’d say it’s a little bit of both at 6500K, isn’t it always the case? Pull it back to 6000K and it’s usually just white.

https://www.youtube.com/watch?v=II3ium0YB6s I measure High to be 1300 lumens, not 1600. Turbo at 3200.

Texas Ace Lumen Tube calibrated with maukka lights

New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)

YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)

Funtastic
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I just reread the OP and he says it steps down to 1600 lumens. His lumen readings are 1000 lumens higher on Turbo which is wrong. Who knows how he gets his measurements

Texas Ace Lumen Tube calibrated with maukka lights

New Zealand store – https://www.piercingthedarkness.co.nz (NZ customers only)

YouTube channel – https://www.youtube.com/channel/UCIUWi2vYp4CWrRkOJM70t_w/videos (Demos for my customers, and reviews)

pennzy
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Funtastic wrote:
pennzy wrote:
Thanks for your review. Will this flashlight sustain 1600 lumens after turbo step down or will the thermal protection continue to throttle it further? Has Simon adjusted the thermal regulation since the first releases to allow longer turbo? Also, is the 6500K white or blue. Thanks for any help.

Get the Convoy M3-U, it’s the new version with USB C charging, it’ll handle turbo better with it’s new driver design. Step down is set at 50°C instead of 43°C on this old model.

I’d say it’s a little bit of both at 6500K, isn’t it always the case? Pull it back to 6000K and it’s usually just white.

https://www.youtube.com/watch?v=II3ium0YB6s I measure High to be 1300 lumens, not 1600. Turbo at 3200.


Thank you for your input. I will check out the M3-U.
I was hoping the 6500K would be similar to Sofirn’s which is actually about 6000K.

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