I want to put a 6v xhp50.3 hi in a convoy H1 headlamp. It’s uses a weird 21mm driver. You think it’d be easier to use convoy’s 17mm boost driver and an adapter, and then would I have to solder it to the adapter ring for heat sinking? Or try to, idk, file down the 22mm? The retaining ring seems to be 22mm but the threads narrow just a bit where the driver fits, so the 21mm doesn’t have a ton of wiggle room. I still think a 22mm might be able to squeeze in tho…
Anybody try this before?
I’m really just trying to make as efficient a convoy headlamp as possible because I like the H1 and I like the UI of its driver, but would like buck/boost efficiency. Not interested in the dw4 w/boost driver for a few reasons. Cost, size, but mainly the switch being where it is on the dw4 is a deal breaker on its own. And not interested in the skilhunt, no ramping, not bright enough, not really efficient either. H1 is where it’s at.
It’d be easier to just use the 22mm boost driver from the s21e on the H3, it’d be a perfect fit off the shelf, but the H1 is so much lighter.
I’m not too sure how deep the driver shelf is on the H1 but you might be able to use an emisar D4v2-size boost driver. It measures 22mm but could definitely be filed down to 21, the copper ring on the outside is pretty thick. Efficient, and has anduril which is probably the best ramping UI available. The convoy switch also is probably compatible with the wiring of the emisar switch if you ignore the aux-light wiring.
Are you talking about the new Convoy 6v boost driver? That’s a clicky interface and the H1 is e-switch, right? Would you try to squeeze a clicky into the H1?
I’ve bought individual drivers from Hank before, not sure what price it’ll be at though for a boost driver (only bought linear). You’ll have to cover extra for shipping though because it is below the $40 threshold so I recommend JLhawaii if you’re not getting a light along with it.
The 5A+FET d4v2 driver (flashed with nofet firmware) and a pair of K1 switches was $16, but I recommend using the convoy switch and doing an AUX delete, it was a huge pain to get it centered right (square peg in round hole)
I just wish the H1 driver wasnt 21mm. Like, really? 21mm? Tsk.
Very hard to find good headlamps for a good price. Even the dw4 that doesn’t really work as a headlamp I would still buy, but by the time you option it out, boost driver, 519a, etc, its almost $100. I would still pay that though if it actually worked better as a headlamp. And the D2 is out of the question I go through 2 or 3 18650s and a 21700 or two every night just in headlamps, is need a backpack full of 14500s.
I saw on skilhunt’s AliExpress store they offered an xhp50 version at one point of the h03 or 04 or w/e, and I wonder if they used a 6v and boost driver because you can still see the price and it was like $150! Is that what it cost them to make that work?? Geez. I thought they were overpriced before.
I wonder if your use would be better suited to a light with an external battery pack. It wouldn’t be that complicated to have a D2 tailcap modified so it has an external 1S2P pack of 21700s and a dummy cell inside, so that it doesn’t weigh down your head but still works for a very long time. Just takes a small hole drilled and a few modifications to the tailcap PCB.
Another option if you have a dremel might be to carefully enlarge the driver pocket of the H1 so that a 22mm D1 driver fits with the edge filed down. It would be something I would try myself if I didn’t already have my perfect headlamp with a DW4.
That would be great! But headlamp must have different mode spacing. More modes in low side. For example: moon - low5ma- mediumlow15ma- medium40ma- high1.2A- turbomax. Thats for 3V led out! For 6V half . Compare it to Skilhunts H series output.
P.S. output levels nonsense , read post 24 below.
Since I was buying some spares from Hank, I asked what a boost driver cost.
It is $18 for either the 6V 4A, 6V 3A (B35AM) and 12V 2A drivers.
Seems like there is also an option for a 2.5A noFET driver for using even lower current LEDs like the 219b and XP-E clones in a D1, which opens up some more possibilities for putting them into other hosts.