Beamshot comparison Xtar, January 2012
This comparison is between a couple of Xtar lights and some other lights at around the same size.


I have included the following lights (Same sequence as picture): Xtar Wk21, Xtar Wk25B, Xtar Wk26, Sunwayman V10R Ti, Fenix LD15, Fenix E15, 4Sevens Qmini 123 warm, 4Sevens Qmini AA warm, 4Sevens Quark AA, DQG AA
Notes:
Wk21, Wk26, V10R, Quark AA and DQG AA used LiIon batteries.
Wk25B, LD15, QminiAA uses NiMH batteries
E15, Qmini 123 used CR123 batteries
4Sevens light are rather old.

This chart shows the total light output measured with a ceiling bounce. The Wk21 is the brightest of the Xtar lights, but it not really using the full power of a XM-L led.

Comparing all the brightness settings it can be seen that half of the lights uses 3 levels, then there are 3 with two levels, one with 5 levels and the V10R with fully adjustable brightness.

The lux measured at 1 meter. The Wk26 has most throw, both because it is one of the light with high output, but also due to the deep reflector with the small led.

The 3 Xtar lights has more weight than the twisties, that is probably due to the larger size and on the Wk21 due to the magnet.

User interface: TS: Tail switch, Head: Turning the head is used in the user interface, Ring: A ring is used to adjust brightness.

The Ti light is very expensive compared to the rest (no surprice there), the Wk25B and Wk26 are very economical lights.
Note: Some prices are from internal selleres outside USA.
Note: The warm Quarks was a special edition, the current Quarks are cool.
Beam profile, high power
Xtar Wk21, Xtar Wk25B, Xtar Wk26:

Sunwayman V10R Ti, Fenix LD15, Fenix E15:

4Sevens Qmini 123 warm, 4Sevens Qmini AA warm, 4Sevens Quark AA:

DQG AA

Beam profile, high power, reduced exposure
The reduced exposure makes it easier to compare the hotspot.
Xtar Wk21, Xtar Wk25B, Xtar Wk26:

Sunwayman V10R Ti, Fenix LD15, Fenix E15:

4Sevens Qmini 123 warm, 4Sevens Qmini AA warm, 4Sevens Quark AA:

DQG AA

Beam profile, lowest setting
Single level lights uses the same picture as above.
Xtar Wk21, Xtar Wk25B, Xtar Wk26:

Sunwayman V10R Ti, Fenix LD15, Fenix E15:

4Sevens Qmini 123 warm, 4Sevens Qmini AA warm, 4Sevens Quark AA:

DQG AA

Beam profile, lowest setting, increased exposure
Increasing the exposure makes it easier to compare the low settings.
Xtar Wk21, Xtar Wk25B, Xtar Wk26:

Sunwayman V10R Ti, Fenix LD15, Fenix E15:

4Sevens Qmini 123 warm, 4Sevens Qmini AA warm, 4Sevens Quark AA:

DQG AA

Trees at 9 and 14 meters
Xtar Wk21, Xtar Wk25B, Xtar Wk26:

Sunwayman V10R Ti, Fenix LD15, Fenix E15:

4Sevens Qmini 123 warm, 4Sevens Qmini AA warm, 4Sevens Quark AA:

DQG AA

Dark reference:

Xtar Wk21

Read more about the light and see pictures and measurements in my review.
Low, medium, high:

Trees at 9 and 14 meters:

Xtar Wk25B

Read more about the light and see pictures and measurements in my review.
Low, high:

Trees at 9 and 14 meters:

Xtar Wk26

Read more about the light and see pictures and measurements in my review.
Low, medium, high:

Trees at 9 and 14 meters:

Sunwayman V10R Ti

Min., max.:

Trees at 9 and 14 meters:

Fenix LD15

Low, high:

Trees at 9 and 14 meters:

Fenix E15

Low, medium, high:

Trees at 9 and 14 meters:

4Sevens Qmini 123 warm

Low, medium, high:

Trees at 9 and 14 meters:

4Sevens Qmini AA warm

Low, medium, high:

Trees at 9 and 14 meters:

4Sevens Quark AA

Low, #2, #3:

34, high:
Trees at 9 and 14 meters:

DQG AA

Low, high:

Trees at 9 and 14 meters:
