Is it possible to get this thing to reach 5000 lumens or more?
I’m asking since I’ve seen people get XHP70.2 LEDs up to 8000 lumens.
So is it possible to mod the driver to give out more current or to take advantage of a higher current battery?
You can try swapping the R030 shunt resistor for a R020 or smaller. The driver will pull more amps so a higher discharge battery is necessary. Will it get past 5000 lumens? Probably yes. Will it get up to 8000 lumens? No.
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Thank you.
Will something bad happen if I just short it out?
Just an addition to my previous reply: In terms of current consumption is a Samsung 40T enough?
The boost driver IC will lose the current reference, so it will deliver maximum current all the time, depending on the driver schematic ofc. If that’s the case, there will be no low or medium, only turbo, turbo and turbo. It can also self destruct from over current, not ideal.
It can also work just fine, but no one knows, some testing is necessary. Mode spacing will be messed up, that’s for sure.
In the end the safest thing to do is to just swap the resistor or stack two sense resistors.
Yep, that will be enough.
What for ? That is only a 6% gain.
Wait what.
Also that’s the lowest value resistor I have on hand currently.
If you want let’s say 30% higher current then you need 1.3 times less resistance (compared to original 10 mOhms).
So what resistor value or code will I need?
Also if possible, what tolerance since I have no idea what tolerance the original resistor is.
Adding a single R030 will give you a 33% increase in current.
Adding a single R020 will give you a 50% increase.
Tolerance doesn’t matter
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Got it!
Thank you so much.
I think that it will be good idea to swap original led with xhp 70.3 because it will give a little better throw.
You can also bypass the springs…
It does not use a spring on the head and I have no idea how to bypass the one on the tail as it does not have a PCB
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Is it better to swap or just to slice the emitter?
Just curious.
Can I just connect the led - wire to the input end of the resistor?
I don’t know, my SP33S is in original cofiguration but my friend change led to xhp 70.3 and it now has better, little throwier beam with more than enough flood.
Sometimes with my SP33S I have impression that the beam has less luminosity in center than periphery which I don’t like.
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