Aluminum isn’t a top performer, but isn’t bad either. If these are DTP, they should be passable for cheap lights….and Kaidomain PCB + LED costs about the same as Aliexpress LED (when buying 10) + Noctigon. Similar DTP, but Aliexpress diodes are factory rejects of random bin and with KD one knows what they buy. There is an intermediate option of using KD PCBs ($1.5/piece) with Aliexpress emitters though.
Wasn’t it that seller someone reported to sell fake sst-40? (When buying small amount it was the real sst-40 that came but when he did a bigger order and he got fakes?)
I don’t have seen anyone reported the other seller (Shenzhen Great Technology Co.,Ltd) to sell fake sst-40.
I asked them to sell only the LEDs because their PCB is crap and it can’t handle the heat when pushed hard.
I got this response:
hi dear friend
I just sell it with pcb .Because some customer brought it back and they don’t know how to make it on the pcb.Then they open the dispute .I have no way deal with it .So i just sell it with pcb now
I hope your understanding
Enjoy your day
Jacky
So I checked the store and they sell Xhp70 and xhp35 Hi without their crappy PCB.
So I wrote another message and told them that and what they wrote in the last message don’t add up.
Got this reply back:
hi dear firend
I sell the sst-40 led only with pcb .NO bare led for sell .
BR
Jacky
So still little fishy…
Why won’t they just cut the amount of LEDs from the reel and sell? Should be much easier.
Only option I can think of why they would not sell any loose LEDs is because they already put them all on their PCB stars.
But then why not just write that to me instead of making up that story?
I bought 1 of every size PCB with the sst-40 (I think).
Buying from aliexpress is like opening Christmas presents. You never know what’s in it.
Damn… differs 400 lumen between VJ and VK voltage bin at 6.8A…
Do they have same color? (cool white I assume)
I guess you got the VK from aliexpress and someone said they sold factory rejects. It could be because of that to it has less lumens.
Both VK and VJ had same type of Mcpcb?
Yeah. Really cheap. I have a few on the way but got a message from intl-outdoor that my order was cancelled because the Noctigon XML was out of stock.
So now I have no good Mcpcb’s for them…
Who bought them all ?
Edit: What alternative store are the for buying some good Mcpcb’s with good shipping for EUROPE?
Is there a thread about this that I have missed?
I know LEDDNA got some SinkPAD ones. Anyone else?
Try Kaidomain.com KD DTP copper MCPCB-s. It need a little mod in soma lights for the screw and wire holes don’t match perfectly but it is a minute job.
Ohh, wait! You got that FET to work? Oh boy - I got one working ok with the modded MT03, but yanked it thinking it might be causing 7135 issues. Turned it wasn't the FET, but never installed it back. Then the other day I tried one in a Q8, and it dodn't work at all, nothing - 7135 rmaping would work, and as soon as it got up in the FET range, it stayed at the max 7135 level. 2X click to turbo produce no light at all -- all consistent with the FET simply not working.
Maybe I got a bad part, or messed it up on the reflow - it all buzzed out ok but maybe I fried it. Will try another one though seeing you got good results with it.
Yeah Tom, I’m running it on a 20mm Mtn. FETDD driver with that guppydrv. rev1 UI, no 7135 at all, just piggy backed it on the X3 driver board. I was popping the 404DP, I thought it was due to the re-flow heat, out of 5 I got 1 to work??? :person_facepalming:
I use the SIR404DP's pretty much exclusively now - pretty cheap at Arrow, qty 10 @ $1.67 each. got a ton of them in lights.
Big advantage of the SIR800DP or 404 is they run real cool, cranking a lot of amps. Richard posted bout it way back. You get over 6A or so, and 800 or 404's is the only way to go.