[Mod]XHP35 HI, 86mm reflector, H2-C driver, & a recycled host.

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1

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: :)

2

WOW. What a beast. Love the mods you have done to this light to get it working. Well done. :+1:

3

That is a modd :+1:

4

Nice mod and result. Sort of like a mini TN42. I particularly like the heatsinking of the driver and figuring out how to use an e switch. So the e switch changes the modes just like tapping a clicky switch would?

If you don’t mind, I’m curious how the XHP70 performed in this reflector. Was the emitter sliced and could you give the throw number?

5

Very nice. Did you use an KD86 OP reflector with the xhp’s ? If so did it still have a donut ?

6

Nice build :+1:

7

Awesome!!!

I always wanted to use this reflector in the D01 but i was never able to find the right adapters.

8

Very nice mod FmC. I like how you were able to re-use so many parts.

9

Nice mods! Glad to see someone using my data for a real build too. Interesting discovery on the MCU pin 1 for changing modes, I will have to update my post with that info.

10

Yes, the E-switch mod scrolls through the modes, but if it's left in any mode for more than a half a second, it requires a double press to start the mode scrolling again. I really don't know what the pin function is that I'm beating on, but it seems to do the trick :)

I did use the OP version of this reflector with the XHP 50 & 70, but don't seem to have written down any performance numbers. The 70 was sliced, & was a nice light, but they were not driven to the max with a FET driver.

The OP reflector masked the older XHP donut hole fairly well - I think it was only noticeable on a wall in very low output.

11

Very good mod! Lots of clever and handy stuff for a great result. :slight_smile: