You need a 4v3 zener diode and a 200ohm resistor in the 0805 package. Of course, you can look for something cheaper. These links are just an example.
In one picture, the zener diode has a strap. This strap should be like in the picture I pointed with an arrow
edit.
I’m not 100% sure but the zener diode can also be soldered on these empty pads
For xhp70 (not xhp70.2) and 2.8A it is around 17.4W. A bit warm. I would leave 8 amc and see how much the body heats up. If you decide, for example, after 15 minutes, the temperature is OK, then add amc. Remember that the LED feels different temperature than you. As for me, 10x amc would probably be too much. This is 3.5A and over 22W. But almost 3000Lm!
It gets warm running Full power. Even with it on low it gets warmish, but not to the point it unholdable. so I guess i’ll leave it at 8. thanks for the info man.
I love the fact the light get’s so hot, I seen a youtube video on this. that is why I picked this as my first light to mod. Just seeing how bright it was amazed me.
Thanks for all the suggestions and links. Would you upload close up pictures of your work? I’d like to see the zener diode and resistor soldered to the board.
So can we use the empty pads of the stock Convoy driver like the one in the picture? Does the stock driver have the 0 Ohm pin and another for 200 Ohms?
OK, so here is the mod done. The Diode was a bit big but it’s just connected to ground, I wonder if there is a better Diode for this. I also upgraded the power and ground wires to 18AWG.
Don’t always trust those “*fire” batteries…chinesium ratings and all that…I like the purple efest ones…they usually do pretty well and are good batteries
Now you gotta learn to solder the button on the flattop batteries (pretty easy if you scuff the contact and use plenty of flux)