Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

DX Now carries XM-L based lights

Prototype

Prototype

0
Joined
Jun 19, 2009
Messages
2,710
Points
0
Was browsing the new arrivals section of DX just now, and they've had XM-Ls on stars for the past few days (they're cheaper from Cutters) but I just noticed two XM-L based lights in an 18650 form for about $33 each. They claim the drive current is 2.8A, which is just under the max current as stated by Cree.

DealExtreme: $32.70 Eastward YJ J06 CREE XM-L T6 3-Mode 900-Lumen White LED Flashlight with Strap (1*18650)

DealExtreme: $32.90 Eastward YJ J01 CREE XM-L T6 3-Mode 900-Lumen White LED Flashlight with Strap (1*18650)
 





rhd

rhd

0
Joined
Dec 7, 2010
Messages
8,475
Points
0
Leodahsan said:
are these really 900-lumens? :D
Click to expand...

Probably not, but these may have the best shot at it, of any single-18650 XM-Ls I've seen in that price range so far.

The XM-L T6-bin *can* hit above 900 lumens when driven at 3A. The DX description says that these drivers supply 2800mA of current, and if that's true, then the specs of these lights would be consistent with ~900 lumen output.

But I wouldn't expect the drivers to actually output 2800mA. Other factors like your battery's capabilities, driver inefficiency, heatsinking, and the inherent *variability* in a manufacturer's posted specs on DX, probably come into play.

That said, if these drivers even supply 1500mA in practice, the T6 bin XM-L should supply upwards of 500 lumens. Not bad for $30!
 
Prototype

Prototype

0
Joined
Jun 19, 2009
Messages
2,710
Points
0
They might be 900 or so lumens before losses to reflector and lens, even Lumintop's XM-L light is less than 600 OTF lumens.
 
3zuli

3zuli

0
Joined
May 30, 2009
Messages
810
Points
28
^^warning: refferal links in previous post (#7)
hmm these lights look nice, maybe I'll buy one
 
Prototype

Prototype

0
Joined
Jun 19, 2009
Messages
2,710
Points
0
KD is nice, but their site can be as hard as h-e-double hockey sticks to navigate.
 
You must log in or register to reply here.




Top