My XinTD C8 V3 seems to throw slightly better than my SRK. It seems to get ~350m vs ~300m. The C8 has a ~40mm reflector (internal diameter), and the SRK has room for more like 48mm. So, I don’t really know what the result will be, but I wouldn’t be surprised to find out that this mod upgrades the throw from 300m to 400m or even 450m. It seems likely to be on par with a HD2010.
I use those reflectors in Maglites. It comes from CNQG. CNQG has one shallow and one deep. I have used them both many times. They will give a decent spot and basically they both throw. It’s more the diameter than the depth anyhow. It won’t be a super thrower pinpoint spot, but it will be more concentrated than a stock king. Of course, it won’t be as bright as a stock king, since it’s one led versus 3 leds, but that’s not the point anyhow. The point is just to be different, that’s all.
An MT-G SRK would kick butt as an all-arounder! I don’t know if there are any tricks that will let you use one with AMC7135 drivers, though. You’d also need a boost driver if you’re committed to 4*NiMH, and a pretty BA one at that.
One one AMC Driver, you’d have to remove the SO-8 Chip (ATTINY13A).
Both AMC Board BAT+ connected to BAT+ Both AMC Board BAT- connected to BAT- Solder wire from a VDD Pin of an AMC7135 of the Master board to a VDD Pin of the Slave board LED+ to BAT+ or to Both AMC Board LED+ Connections LED- to LED- on both Master and Slave board.
Edit, I put up incorrect information on this. This would only increase the amperage.
Man, that just gave me an idea. Couldn’t two drivers be run in series off the batteries to half the voltage to each. Example: Positive from battery to first driver’s positive, negative from first driver to positive of second driver, and negative from second driver to battery negative. Then parallel the drivers to the LED with one being a master.
That would give you double the current, but not the voltage needed to make it light up. Unless there's some other trick involved I'm not aware of.
You'd have to have a supply voltage higher than the LED's Vf, and a way to keep the MCU from frying at that higher voltage (which is possible), but you ain't gonna get there with only four NiMH.
comfychair’s response to another post also answered mine. Serial drivers would not provide enough voltage. Like above, the current would double, but not the voltage. So, while the drivers would not fry, the emitter would not light up.
The output to the LED is parallel. led+ and led+ together, to the led. led- and led- together to the led. This gives you twice the voltage. It's a parallel circuit to the led. It's just like two batteries in parallel. + to + and - to - gives you parallel, that increases the voltage. Series is + to - and increases the amperage. Actually this set-up increases both, as it really is series parallel. The removal of the slave controller and the wire from master VDD to slave VDD on the 7135 circuit produces control to all 7135 chips.
Am I missing something here? I don't think so, but I could be wrong, (like just about every day).
EDIT: Yes, I am wrong. Completely wrong and worst of all I still don't get it.