Boost it’s pulling 8 amps on a VTC5A, I thought I had something wrong at first, cause it would only pull 6+ amps, until i put a fully charged VTC5 and then a tried a VTC5A . I just swapped out the emitter/board in my M25C2 Turbo that had a FETDDdrv. in it. It’s a pretty intense BLUE-ISH spot, just kinda fuzzy and dark to one side, like casting a shadow from the silicone clinging on. Meh, I live with it, because I know what will happen! :person_facepalming:
Dales shaves them down to just above the phophorus and he’s getting like 9.4amps or more 2400-2600 lumens, something like that.
Maybe or could be, if they are weak, they might be damaged, I had a few that would light, go thru the levels a couple times and then burn out, some instantly and they still had the dome on, it was released from the base just not completely off, so I’m left wondering, was it the bond wires or was it the chip to the pad problem? Dunno?
Wow, even some of those from KD have badly solder flowed chips??
There’s no way the solvents cause the chips to fall off i.m.o.
On mine you could see it wasn’t soldered properly.
It’s possible you will blow the bond wires from too much current (~9.5A) if it’s direct drive and low circuit resistance. What is the voltage configuration and driver? And have you used other cells in the light successfully?
Yes sir. The tk75vn is modded by Vinh. Probably drawing 4.5 amp from each cell… the Carrier is 4S… I like using Sony vtc5a. So far I have no problem using the highest mode with my vtc5a.
Either way, if the light break, he said he will fix it for free… so I don’t worry much…
I ordered two from there. I couldn’t make out any flaws in the domes of the ones I received. I put one in a direct-drive light. I haven’t done any rigorous tests, but I can say that it puts out a lot of light and runs relatively cool. I built a similar light in an F13 host, with a 26650 battery, but I used an SST-40 emitter on a DTP copper MCPCB I bought from Kai domain. I’d estimate they have similar performance, but the one from KaiDomain is slightly warmer, as expected.