Ultrafire HD2010 (easylightbuy) 1x18650 / 26650

Sure Garry. I am new to XML lights and dont have any others to compare it with. Compared to my 200Lumen XRE P60 dropins (DIY builds at 1.4A) its a tighter beam than those. Neat thing bout it is the Lux values are greatest right in the center of the beam, theres a small-center hot spot (if you will) right in the center of the hot spot. Hope that makes sense. Not sure if this is a characteristic of all XMLs in throw reflectors, as I have nothing to compare.

I'll play around with it some more tonight on my night-jog.

For some reason I can't take tailcap current measurements (at least not very reliable ones). I set up my meter to 20A like I always do, and when I touch the probe to the body off and on, it does not cycle through the lower modes...??? it just goes HI-HI-HI-HI... strange. FWIW it draws 4A with a panasonic CGR18650E, and 3.2A with my orange Battery Station 26650 cells. I dont think my measurements are very reliable though.

Hope this helps

Thankyou for this review! Perfect because I just ordered this same light this afternoon from them! What a coincidence. It is nice to see good things! I planned to drop a 4.2a driver and a U2 into it but maybe it won't need it?

Thanks again for the review!

I'm thinking this is direct-drive on high. Think someone brought this out in another thread (on the FandyFire?).

Think I would have preferred it start on medium every time instead of high. How's the spill? Plenty of flood, or tightened up (which is what I expect to hear).

-Garry

Holy moly this thing is BRIGHT (relative to my collection). I really don't have anything this bright that throws this far... in this small form-factor. Its still basically a hand held light, that you can cary in a coat pocket. It that blows away my ~3A MCE and P7 lights in both Lux and lumen output.

Side spill is better than I thought it would be from a reflector this deep. It reaches a little farther to the sides than my XRE-P60 modules.

I think this will make a nice addition for anyone wanting a 1x26650 light.

kramer - very nice mini-review and nice light, thanks for posting! I am curious though, how did you know it was a 26650 light? I don't see any mention in the link you provided or in any other site that carries this light - they all say 1 x 18650. And does it have current regulation by any chance?

From most photos online, they all appear to come with a 26650 to 18650 sleeve, so it's great you can use this we either battery type. The one thing that is strange is that some websites show it's only about 390 OTF lumens. The only reason I haven't ordered one yet is because they don't come in a box. I've had my share of flashlights arriving in pretty bad condition just tossed in an envelope.

Kramer, thanks for posting this. It's really a beautiful torch.

Yeah I just looked at the pictures and figured it would be 26650 sized with the 18650 adapter.

I am not sure about the regulation. I have no way of really measuring it. Can anyone comment on the driver board circuit? I am guessing its a voltage buck circuit. Uses some sort of current regulating driver, and a programmable EPROM chip to set the modes.

This one came in a box with foam sheet padding and bubble wrap. Not a "gift box" mind you with custom cut foam and fancy logos, but a generic box suitable for shipment.

Thanks for the heads up Kramer. That's secure enough shipping for me. Easylightbuy is the same place I wanted to order from too.

I should also note that the driver pill had some metal shavings that had to be removed. I removed them prior to taking the pictures.

None of the body tube and tailcap O-rings seal well, so this ones not going to like water very much. Bezel and front lens O-rings however are very snug. I accidentally tore the one around the bezel when I unscrewed it... DOH!! So I have some DIY mods ahead of me to get this one sealed up against water.

The reflector does not have an insulator disc. I had to cut my own using 3 layers of Scotch packing tape a hole punch and some scissors. I am not sure about this light but usually bad/strange things happen when the LED +/- shorts to (or across) the reflector.

Sure any time Richie.

Spent $3-4 at my local OSH and up'd the ante on the O-ring gaskets. All the junctions are now nice and snug fitting....

New O-ring and close-up look at tailcap threads

Dunk-proof (after 10 minutes)

Have you ever checked tailcap current on medium?

-Garry

Very nice! Thanks for the pics, keep them coming! :)

Hi Garry unfortunately I am still unable to get any other readings. For some reason I only get HI - SOS - HI - SOS. Current draw on HI is ~4A (but I don't trust this number... let others reply back hopefully).

The more photos and info you post the more excited I am to receive mine! I hope my HIMAX 18650 cells will allow for 4A+ draw! I want this thing to be a beast :)

I've got the black UltraFire HD2010 from KD for $40. The driver is unregulated, with a no-memory PWM mode chip controlling a FET. For the battery, I'm using a Moli IMR-26650C. Using copper wire and a clamp meter at the tail, I measure high steadily climb from 4.0A to 5.0A as the LED heats up (then I stop before it goes any higher). The tailswitch would add more resistance than the wire I'm testing with, so realistically, I'd say the light runs ~3.5-4.0A on high. Medium pulls 1.7A and low pulls 200mA. This cell measured 4.0v open before and after testing.

About the focus, there is a focusing ring around the emitter. In order for it to work, you've got to unscrew the pill almost a full turn from bottoming out, to raise the centering ring up high enough to enter the hole of the reflector. At that point, there's only enough wiggle room to affect the corona around the hotspot, but not the hotspot itself. I locked mine into perfect center by using a little kapton tape at the edge of the reflector to hold it in place while I tightened the bezel and tucked the (slightly too small) lens o-ring into place with a pic. The beam profile is remarkably similar to an XML in a Mag LED (Rebel) reflector.

With the exception of the focus fine-tuning, this is one light that's about as good as it can be on receipt. I had plans to swap the emitter with a 5000K XML, the tailswitch to a lower resistance forward clickie and the driver to a 3.0A KD V4 with a 1A slave set for LMH, but now that I have the light in hand, I think I'll leave it just the way it is, disco modes and all. It's rare that I get a light from China and don't immediately rebuild/upgrade it. This one's a gem.

THANKS for the current measurements. Nice to know at least my HI measurement was not way off base.

I agree, this ones useable out of the box. I didn't really have to upgrade the O-rings. Actually the flashy modes aren't "too" bad. I forgot to mention this, but I can skip over the disco boogie and go from LO back to HI by soft pressing and holding it for 2-3 seconds. The EPROM interprets this as a power down cycle and reverts back to HI. Of all the "non-hidden" disco strobes I have owned, this ones been the easiest to get around.

Folks can you clarify something for me. Am I correct that the version of this light from BeamTech BT-4000 CREE XM-T6 18W 2700LM 5 Mode Flashlight, is the one that has bad thermal transfer, but it's this Ultrafire HD2010 that would be the one to purchase??

If so, what makes the Ultrafire better? I'm getting a few dollars together and will be purchasing this light and wanted to make sure I get the correct one. Thanks.

That's the triple XM-L. This is the single XM-L thrower. I bought mine from Tmart and it is a fine thrower. It is driven quite hard at nearly 5 amps. The triple would be running on just 1 18650--underdriven.

Every three-XML version of this light I am aware of (regardless of what name is etched on the side) has a spring suspended drop-in pill with no thermal conduction path to the outside of the light. The LEDs in a spring floating design will not be able to sustain high currents for very long without thermal dimming or over-heating the LED die surface.

The HD2010 in this thread has a screw-in pill that conducts heat away from the LED efficiently, through the pill and into the host body.