What did you mod today?

Modified BLF KRONOS Special Copper X6….21700 tube

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. Triple 3v 50.2 K2 1D 6200k

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. Slight tweaking needed…. optics SUCK! :rage:

Is that melted optics? If so never seen such a thing

Unless you shorted something that current should be fine. You sure you didn’t have dirt on it? Before u trash it scrub it with alcohol and try again without the head on it

Thanks, I'll give that a shot. I didn't run it very long on high power, less than 15 seconds per "burst". I have another white flat that I accidentally bought on a 16mm mcpcb a while back, and if this one is truly dead I'll just reflow it over.

I made this contraption to be able to measure leds at a precise angle. The bottom section is a rotation stage that I bought on aliexpress, the rest is custom made. The middle section (the black painted aluminium thing) is made such that the led is almost exactly on the rotation axis. But it is all made with hand tools while it should be done with an end mill, so the centering is not sub-mm precise. Still it should be good enough for what I want with it.

This thing is planned to be fixed onto a rail of some kind.
I’m not sure what I want it exactly for, tint measurements I guess, it was mainly fun to make it. But it could be used for rather cumbersome led output measurements too, as a hand-operated goniophotometer.

The Sofirn C01 in the picture is for size reference.

Astrolux MF01 mod
Leds: 18x Samsung LH351D 5000K 90 CRI
Driver: Haikelite MT09R TA FET
MCPCB: Modded from 6S3P to 2S9P led wiring
Springs: Stock but 20 AWG wire bypasses in carrier and 18 AWG bypass on driver
Output: 20130 lumens
Intensity: 61200 cd

Looks good djozz. Taking it to the next step. Where do you hide this from the better half? :slight_smile:

That is quite the monster, Zozz ! 20.000 lumen in 90CRI must be very impressive when lighting up a forest.

I keep my builds tiny so it fits in my dark hole behind the cupboard :frowning:

Very nice Zozz. I also reflowed lh351d 90cri to my mf01 mcpcb, but can’t find some time to put it together

I highly suggest to upgrade to better or 2. SIR800 FET as this will also get very hot at those currents

In the spirit of “Because it was there” I put 4 White Flats in an E07 along with 3 stock XP-L HI emitters. Reduced the hot spot, increased the hot. lol

We are under warning for severe supercell storms with possible softball sized hail and even tornado’s, supposed to be a huge amount of wind, lightning, and some localized flooding possible. So to get prepared, I am running 8 lights with Anduril in Lightning mode, from a few hundred lumens to 21,300. :smiley:

TK-05, 2 E07’s, Ham’r, EOD20, SP03, and GT Mini as well as my Meteor. These are on the shelves in front of and above me, quite a show!

When I replaced the FET in my MT09R and MT03 they both having the dim glowing led error. With original FET they were completely off.

I have this error on one of my Q8 with Luxeon MZ and stock driver.

I would say to look at the 7135 for that dim glow, the MOSFET is turned off at low levels so any power coming through has to be due to the 7135 leaking. :wink: (gut feeling, don’t know this for 100% sure)

Y’all replaced one FET for a different huge one (’800 for an ’808)? Betcha leakage current when “off” is gonna be proportionately higher, too.

Ever stick a non-dimmable CFL bulb in a socket controlled by a dimmer, even if you don’t intend to dim it but just slam it on/off? Even when “off”, it’ll flicker at random, like having your own lightning-mode built in.

That teeny-tiny leakage current slowly builds up charge in a capacitor in the CFL, enough to just let it “discharge” with a quick dim pulse.

Can probably be fixed with a resistor across the LEDs that’d suck down maybe 1mA or so. So… 3V, 1mA, about 3kΩ oughtta do it.

That way even 0.1mA leakage current would tend to go through the resistor first, and not even let the voltage rise to Vγ to light the LEDs.

None of those drivers have 7135. Just the fet changed and for the lower channel I even removed the small fet and still glowed. So I think Lightbringer has the answer.

Yay! I win!

Wieselflinkpro’s Q8 is what made me think of that response. :wink:

If the driver doesn’t have a gate pull down resistor (10k), that might fix it. It’s an ATtiny thing.

I built 2x Convoy s2+ with LD-4 Drivers. One with Nichia sw45 9080 and the other luxeon V 4000k.



I try both, and the nichia it does not look pink tint as other people say (not very impresive). Any form of check if the led is correct?