Hi guys,
I bought a Pentagon L2 LED light to see what their entry into these lights was about and I also bought an inexpensive PX1 primarily to see how they integrated a swivel belt clip and tab into their system; something I am personally fond of!
Well I have no use for a single CR123 incandescent light and in considering making a new head to host my McR-27L reflector modified to go with a Joker LED, I got to looking at the PX1 and realized it looked to have the room required to host the deep 27 mm reflector. As it turned out, there was a couple custom turned parts and some modification to the profile of the reflector but the PX1 did serve as a host:
More info on the build, HERE.
It was interesting to compare this light with the L2 and the following are some images and graphs related to the two:
And even a stupid beam shot! :nana:
Now I have no idea of the bin of Luxeon used in the L2 nor do I have a feel for the electronics or efficiency. Certainly it is an unfair advantage in using a UXK1 LED but heck, the L2 does get twice as many batteries to use!
From a couple feet away, I measured the lux of the corona in the middle (axially) from the edge of the spot to the edge of the corona. The P-L2 was 61 lux and the mod was 83 lux. At a distance and in real use, the P-L2's spot seems to be more uniform in intensity and slightly larger with a more noticible drop of into corona whereas the 27L has a tighter spot and feathers out within the spot as well as into the corona with less of a sharp drop. In the beam shots above, the lights are too close to target and the spot is well oversaturated for the camera to see any difference.
In retrospect, I should have made not of the relative radiometric power readings of the two lights as it would seem from the spectrum that the lux as well as flux measurements for the mod would score higher since its "blue fin" is closer to photometric sensitivity optimum than that of the L2.
I bought a Pentagon L2 LED light to see what their entry into these lights was about and I also bought an inexpensive PX1 primarily to see how they integrated a swivel belt clip and tab into their system; something I am personally fond of!
Well I have no use for a single CR123 incandescent light and in considering making a new head to host my McR-27L reflector modified to go with a Joker LED, I got to looking at the PX1 and realized it looked to have the room required to host the deep 27 mm reflector. As it turned out, there was a couple custom turned parts and some modification to the profile of the reflector but the PX1 did serve as a host:
More info on the build, HERE.
It was interesting to compare this light with the L2 and the following are some images and graphs related to the two:
And even a stupid beam shot! :nana:
Now I have no idea of the bin of Luxeon used in the L2 nor do I have a feel for the electronics or efficiency. Certainly it is an unfair advantage in using a UXK1 LED but heck, the L2 does get twice as many batteries to use!
From a couple feet away, I measured the lux of the corona in the middle (axially) from the edge of the spot to the edge of the corona. The P-L2 was 61 lux and the mod was 83 lux. At a distance and in real use, the P-L2's spot seems to be more uniform in intensity and slightly larger with a more noticible drop of into corona whereas the 27L has a tighter spot and feathers out within the spot as well as into the corona with less of a sharp drop. In the beam shots above, the lights are too close to target and the spot is well oversaturated for the camera to see any difference.
In retrospect, I should have made not of the relative radiometric power readings of the two lights as it would seem from the spectrum that the lux as well as flux measurements for the mod would score higher since its "blue fin" is closer to photometric sensitivity optimum than that of the L2.