XHP-35

[pilotdog68]

I know, it’s doable. But I’m not comfortable with that many cells in series. That also puts you at almost 17v fully charged.

[n10sivern]

@pilotdog68

I know, it’s doable. But I’m not comfortable with that many cells in series. That also puts you at almost 17v fully charged.

I bet the LED could handle the 17V as it is 4 die array.

[Manual_Man]

I noticed the die lines running through it. I don’t think they will be visible when its running. I guess time will tell.

It should be simple enough to run one of these off a single Li-ion while still maintaining about 90% driver efficiency, in fact I think because of the nature of boost circuits it should be possible to maintain a higher average efficiency then AMC7135 drivers from 0.05A through to 2A (if Vf is not too high).

I’m thinking something like this:

slvscm8d.pdf

[Old-Lumens]

I would think it's going to take 4 cells, like in an SRK, but 4 in series, to get the voltage. Once this goes up over 1.5 amps, then you will be talking more like 13-14 volts, so I would think 4 cells and a buck driver would be better off than a boost driver. Buck is usually more efficient than boost and takes less amperage from the cells. Or at least 3 in series and a boost driver.

I could see SRK lights with four of these leds in parallel and four cells in series, or a Courui with a boost driver and 3 cells in series.

[DavidEF]

@Old-Lumens

I would think it’s going to take 4 cells, like in an SRK, but 4 in series, to get the voltage. Once this goes up over 1.5 amps, then you will be talking more like 13-14 volts, so I would think 4 cells and a buck driver would be better off than a boost driver. Buck is usually more efficient than boost and takes less amperage from the cells. Or at least 3 in series and a boost driver.

I could see SRK lights with four of these leds in parallel and four cells in series, or a Courui with a boost driver and 3 cells in series.

Yeah, but why would you want all that power going to a XHP-35, when you could easily power up at least a XHP-50 with that, and with high-drain cells, a XHP-70?

[DavidEF]

@n10sivern

Small 2S 18650 with 4x 18350’s or 16340’s in series. Something like a Convoy S2 with an extension tube.

Or 4x 10440 like this or this or this

That second one looks perfect!

[finges]

4x 10180 in a 2x AAA tube light (mini maglite for example)

[DB_Custom (Dale)]

That would be cool! Runtime would suck in a big way, but still….

[DavidEF]

Sorry, the link messed up my quote block and I didn’t catch the error. Fixed it now. That was n10sivern that found those. I would love to have one with an XHP-35 in it. Run-time should be okay, as long as full-on Turbo mode was used sparingly. 0:)

[texas_shooter]

Missing out on some ideas here. For the High Intensity version, that emitter is 2.4mm square. That’ll fit under 26.5mm TIR’s from Carclo, its input hole is 3.8mm. This next area I’m not sure about. But the input side from the Carclo 10511 family is 1.7mm so not certain what will happen to light from the outer area not under the hole. What I’m thinking as a good light build is a two cell light with a driver to bump up the voltage and yet fit into the P60 or C8 family of lights.

[DB_Custom (Dale)]

An EE X6 w/extension tube and 35mm Ledil Cute-4 optics. Quad XHP-35, that should garner some attention!

[DavidEF]

@DB Custom

An EE X6 w/extension tube and 35mm Ledil Cute-4 optics. Quad XHP-35, that should garner some attention!

Okay, so how much ya sellin’ those for, Dale?

[pilotdog68]

Dale did you make your extension tube yourself? I think I would like the X6 proportions much better if the tube was longer

[DB_Custom (Dale)]

I have one with a Ledil Mirella and a single XHP-70 that does some 5500 lumens. The extension tube went to a Solarforce M7, took a little modification but it all works well together.

So yeah, what I was thinking, an extension tube would allow for what, 4 18350’s? Maybe 3 18500’s? (Although I have yet to find an 18500 that will put out like the shorter 18350 Purple) Then it’s just a matter of determining the driver, right? I’ve tried 12V triple XHP-70’s on 3 18650’s and they can’t do the forward voltage. But 4 parallel XHP-35’s with 4 18350’s, run through a Zener modified FET driver, that could be interesting…. the problem as I see it is that 1A max current thing, wonder what they can REALLY take?

Would this maybe do 8000 lumens? Don’t know, but if I can remember all this I’ll probably give it a go.

Edit: Have some of the HI XHP-35 on the way, y’all don’t let me forget why I ordered these ok?

Edit II: Ok, so these fit the XP footprint which means a triple would be easy to do in the X6 with a Noctigon 32mm mcpcb. I have copper heat sinks for this, and the Ledil Cute-3 optics, so all I need is for the emitters to come in and we’ll see what these puppies can do! (backorder on the XHP35 HI til Aug 5, they’ll probably ship a day or two quicker, we’ll see.)

Edit III: Looks like, from some extrapolation of the data sheets, we should expect something in the 4400 lumen area with a Vf around 12.6. Not stupendously outstanding but not at all shabby either.

[DavidEF]

@DavidEF

@DB Custom

An EE X6 w/extension tube and 35mm Ledil Cute-4 optics. Quad XHP-35, that should garner some attention!

Okay, so how much ya sellin’ those for, Dale?

I changed my mind. I’d never be able to EDC that.

[Manual_Man]

Available at Cutter already apparently, if the price is any indicator they should eventually be available for about $5 each as well:
http://www.cutter.com.au/proddetail.php?prod=cut2677

[richnpc]

@texas shooter

Another possibility is using set ups that use 4-18650’s to run say 3 XM-L’s in series to now run 3 XHP-35’s in parallel. Now we’d get less current through switches, springs and wires but have better wattage. Tiny Monsters from Nitecore and G, S, M series from Eagletac.

Is the old DRY 3 XMLS in series? I wonder how that might work out.

[texas_shooter]

@richnpc

@texas shooter

Another possibility is using set ups that use 4-18650’s to run say 3 XM-L’s in series to now run 3 XHP-35’s in parallel. Now we’d get less current through switches, springs and wires but have better wattage. Tiny Monsters from Nitecore and G, S, M series from Eagletac.

Is the old DRY 3 XMLS in series? I wonder how that might work out.

The original DRY triples were series on a supposed 4 amps driver. Should be a fairly straight forward modification.

[Old-Lumens]

@DavidEF

@Old-Lumens

I would think it's going to take 4 cells, like in an SRK, but 4 in series, to get the voltage. Once this goes up over 1.5 amps, then you will be talking more like 13-14 volts, so I would think 4 cells and a buck driver would be better off than a boost driver. Buck is usually more efficient than boost and takes less amperage from the cells. Or at least 3 in series and a boost driver.

I could see SRK lights with four of these leds in parallel and four cells in series, or a Courui with a boost driver and 3 cells in series.

Yeah, but why would you want all that power going to a XHP-35, when you could easily power up at least a XHP-50 with that, and with high-drain cells, a XHP-70?

Because possibly 3500-4000 lumens with no deadly black X of death from a four die led? Possibly, no faceted or OP reflector needed? Possibly 12000 lumens out of a SRK with 3.45 sized die? Not having to mod the reflectors or centering rings? Not worth F------ with? Maybe not, but maybe it will be. Dale will let us know soon enough, LOL. I don't even bother any more till Dale is done with his thing.

[DavidEF]

@Old-Lumens

@DavidEF

@Old-Lumens

I would think it’s going to take 4 cells, like in an SRK, but 4 in series, to get the voltage. Once this goes up over 1.5 amps, then you will be talking more like 13-14 volts, so I would think 4 cells and a buck driver would be better off than a boost driver. Buck is usually more efficient than boost and takes less amperage from the cells. Or at least 3 in series and a boost driver.

I could see SRK lights with four of these leds in parallel and four cells in series, or a Courui with a boost driver and 3 cells in series.

Yeah, but why would you want all that power going to a XHP-35, when you could easily power up at least a XHP-50 with that, and with high-drain cells, a XHP-70?

Because possibly 3500-4000 lumens with no deadly black X of death from a four die led? Possibly, no faceted or OP reflector needed? Possibly 12000 lumens out of a SRK with 3.45 sized die? Not having to mod the reflectors or centering rings? Not worth F——— with? Maybe not, but maybe it will be. Dale will let us know soon enough, LOL. I don’t even bother any more till Dale is done with his thing.

Well… ya got a point there! :bigsmile: