It's been a little while since I done a decent mod, & I've been keen to get something together.
I had a spare XHP35 HI laying around that I robbed from my PK26 upgrade, & I wanted to suss out it's potential as a thrower.
The new H2-C driver from KD looked like a great option, & it hit the mailbox on Friday. Jensen567 had done a bit of tweaking with the driver, & it looks like a great performer, with good efficiency.
I decided to re-use a modded host that I've used a couple of times now, as it's perfect for this combo. It's an "L3", which was sold under the Solarstorm & Fandyfire brands a few years ago. It uses a 2S3P cell arrangement. I transformed it into a single-LED thrower a while ago, where it produced 814k of throw with an XPG2, & since then it has been host to an XHP 50 & XHP 70 as well.
Today, I started by changing the sense-resistors on the H2-C driver to a combined R030 value, which gave a ~2.3A maximum to the XHP35, when I bench-tested it with my UNI-T clamp meter.
I'd previously made a driver caddy, using the stripped L3 driver board, a couple of PC motherboard stand-offs & some copper scraps;
After a little prodding around, I found that grounding pin #1 of the MCU could be used for an E-switch.
With a few slices of heat-sink cube, the driver was sandwiched in place;
I re-used a 32mm Noctigon that had already been altered to fit the heat-sink;
I'd previously tested the ideal focus height with this reflector, which is about 0.030", & already had a centering ring & shims to suit.
Assembled light, with Convoy S2+ for size comparison;
Performance;
* 2256 Lumens, using my "pipe-meter"
* 510k Throw (1428 meters).
Beamshots; looks like a furry friend wants to be in the spot-light tonight!
Cheers :beer: :)