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you need a better soldering iron

those are great
https://de.aliexpress.com/item/33010531048.html?spm=a2g0o.productlist.0.0.a0612ea7qalxz5&s=p

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3

You got that right. That was painful to watch.

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Thank you so much my friend. Wishing you a great day.

5

Mine was also a pain to take apart i think they used lead free solder on the MCPCB.

Also using an iron tip with a flat bottom help heaps in bigger lights.

6

Can i buy this? Thank you again.
https://www.aliexpress.com/item/32932776558.html?spm=a2g0o.productlist.0.0.5f6d7850NXJ1WU&algo_pvid=e714561c-b1ca-483d-a1cd-cfcd892fb0d0&algo_expid=e714561c-b1ca-483d-a1cd-cfcd892fb0d0-2&btsid=e83f3a44-c6b9-41aa-ac7d-1025f08211a5&ws_ab_test=searchweb0_0,searchweb201602_3,searchweb201603_52

7

That price is 40$ in Viet Nam. Is it good enough. Thank you my friend
https://www.aliexpress.com/item/32829734137.html?spm=a2g0o.productlist.0.0.5a363238wJAWbV&algo_pvid=423dcb81-f0ed-407f-9d5d-25792fabfd73&algo_expid=423dcb81-f0ed-407f-9d5d-25792fabfd73-1&btsid=6491a0f3-bc97-473c-8f75-4e6c97e08e71&ws_ab_test=searchweb0_0,searchweb201602_3,searchweb201603_52

8

Best performance flashlight in the world?

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These soldering iron work fine i used a Yihua clone since 2015 but its not working right any more. So i upgraded to a similiar model model as Lexel posted these soldering irons are a newer technology they have the heating element built into the tip for a better more precise temperature control and heat up much faster.
I also bought a hot air gun that was a Yihua clone and it was a bit dodgy as it has no earth connected at all so just be careful on what you buy. Id probably tray more towards the Yihua brand more than other clones.

If you have a look around you can find them cheaper. Similar to the one posted just smaller and cheaper.

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This one has worked great for me so far on 5 flashlights.

soldering iron

11

its garbage when it comes to MCPCBs

you need one that can supply a lot of heat quick, so the thermal resistance needs to be low as well as a good heating element
usually the best ones are where you have the heating element being one piece with the tip and then have one with thick short tip

the Hakko clones are basically a DTP soldering tip

12

I was able to reflow two emitters with no problem at all.
One was on a S70S, which has like a 50mm board. Worked like a charm. And takes the wires right on and off.
It does have a heat element that goes all the way up, the tips are hollow and slip over it.

13

I thinks Astrolux FT03 is best P/P

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Thank you my friend

15

agree.

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Hey,

since you have taken it apart. Can you please tell me what diameter the LED pcb has?!

Thanks and best regards
Thomas

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That looks similar to what is in the S70S which is something crazy like 50mm. I looked at mine. Way bigger than 20mm or 32mm

18

My friend. MPCB has size 25.5mm. I have also replaced the SST40 leds with XHP50.2.

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I also replaced the power cord with the 18AWG wire after replacing the XHP50.2 leds. This is the Astrolux FT03 version using SST40 leds.