Review: UltraFire HD2010

copper alone is not going to increase lumen output on a cold start. Copper has the same ambient temperature as aluminum. Where it may (in theory) pay off is with higher drive currents, where it should conduct heat away more efficiently than the aluminum heatsink. But even thats debatable with an aluminum pill underneath.

Maybe you could use a thicker gasket in front of the glass to help take up the extra gap form the thinner copper?

The flicker may be a dry solder or poor contact of the pill with the reflector housing causing a bad earth.

I'm after a holster for this flashlight. Something that does not have a bottom in it so the bottom of the battery tube does not sit in anything. Any recomendations?

Yeah, I'm wondering what good holsters are out there for 26650 sized lights in general.

-Garry

Is the UltraFire HD2010 600 or 1300 or 390 lumens?

When I google UltraFire HD2010 I some sites advertizing 600 lumens and another sites 1300 lumens and also 390 lumens. Are these the same Ultrafire HD2010s, ignoring color, but using different drivers? Or are they different because of the battery being used (protected/unprotected)?

Site advertizing 600 lumens

http://www.lightmalls.com/perfect-ultrafire-hd2010-600lm-cree-xm-l-t6-5-mode-led-flashlight-1x18650

http://www.dinodirect.com/wholesale-flashlight-hd-cree-t6-600lm-led.html

Site advertizing 1300 lumens
http://www.tmart.com/UItraFire-CREE-XMLT6-8W-1300-Lumen-5-Mode-LED-Flashlight-Gray_p135765.html

Site advertizing 390 Lumens
http://lightake.com/detail.do/sku.UltraFire_HD2010_Cree_XM_LT6_3_Mode_390_Lumens_LED_Flashlight_Torch_Gray_1x18650–51207

None of the above I would say. I would think it is brighter than 600 lumens, but definitely no where near 1300, probably in the 700-900 range.

Those are all the HD2010. Its just www retailers copy-pasting whatever description they can find. I think its somewhere in the 750-900 lumen range. Its slightly brighter than the stanley fatmax on a ceiling bounce and a member on the other forum measured his stanley around 750 Lumens in his sphere.

I just wanted to add an update from a PM I received from Sherry Ye at Tmart. She offered me an $8 credit. I graciously accepted.

/whineFoy

I’m not sure I get the significance of an o-ring around the pill. What is that for? Thanks. Nice review by the way!

Actually, now that I think about it, I'm not sure why either but it did come with an o-ring around the pill so, had to report it. It was very thin so I replaced it.

Why would they put an o-ring there? Seems like that would hamper heat trasfer a bit, if anything.

hmmmFoy

Good question, mine had that too. I dont think it serves any purpose… “maybe” its a way to help snug everything up if a run of lights has a bad tolerance stackup that doesn’t add up?

Has anyone measured lux numbers of this powerhorse?

It’s now $33.52, with US based shipping. I’m just saying…

http://www.tmart.com/UItraFire-CREE-XMLT6-8W-1300-Lumen-5-Mode-LED-Flashlight-Gray_p135765.html

http://www.tmart.com/UItraFire-CREE-XMLT6-8W-1300-Lumen-5-Mode-LED-Flashlight-Black_p135768.html

In B L A C K, less than 3 weeks ago --- Black was PREMIUM Priced >$40, (I think)

is the tmart hd 2010 just as bright as the manafont one? or are they all the same?
im looking to buy one.

The only reason I would want a driver swap on this guy is to get rid of the flashies. It already pulls up to 5 amps.

Foy

I have been wondering the same thing. Do all HD2010's from everywhere have the same driver?

goodquestionFoy

TangsFire from DD, for <$34. Someone said that, but, if I remember well, drivers were absolutely identical :expressionless: Quite strange.
Does someone have 15% off for TMart? :stuck_out_tongue:

Yes they are all the same component wise same driver emitter etc… The Internationale Outdoor one had a darker grey color that I liked better than the light gray Tmart one but the Black one looks best in my opinion.

Mine pulls 2.25A, but that is on an 18650 battery…I have no 26650’s yet.