Thankyou for helping
i summerized the choice
-SWM V20C
-Nitecore IFE2
-SWM V10R
I might choose V20C, gotta read more review about the beamshot
JB RRT-21 and V20C which 1 has more throw?
Look at Selfbuilt's data below.
The Nitecore IFE2 XPG-R5 has the thinnest form factor - a simple cylinder with straight/parallel sides of 1 inch in diameter, therefore it has the smallest reflector, hence the shortest throw of just
117 meters till the brightness falls to 0.25 lux.
Next up is the Sunwayman V20C XM-L 438 lumens.
There is no direct throw data for the V20C XM-L T6 1.333 inch head.
However, based on Selfbuilt's data of the older brother
T20C XP-G R5's 167 meters till the brightness falls to 0.25 lumens, the XM-L versions of both the T20C and V20C will be
much less!!!
Also, Sunwaymans have a reputation for less throw.
However with an enlarged head, and a diameter of 1.333 inches, the V20C throws well past the thinner Nitecore IFE2 XP-G R5.
Now, the Jetbeam RRT-21.
Jetbeam has a good reputation for throw.
The old discontinued Jetbeam RRT-2
XR-E R2 on Selfbuilt data throws a whopping
216 meters till the brightness falls to 0.25 lux!
The new RRT-21 XM-L T6 with
460 lumens and the same 1.333 inch head, on Jetbeam's own measurements throws
155 meters.
With no direct data available, I suspect the Sunwayman V20C will throw less than the RRT-21 because it has only 438 lumens, and Sunway's reputation is for less throw...
As for pocket sized single cell CR123
RRT-0 versus
V10R, there is no perfect light - it's
horses for courses.
If you want a true compact, that is thinner, with straight parallel sides, lighter, then get the Sunway V10R.
However, keep in mind that the straight parallel design means that the magnetic ring fits
flush so many owners complain that it is hard to
feel for the ring in the dark; the straight parallel sides also means the reflector is smaller for less throw.
Sunway also has a reputation for fewer lumens - in this case just 210.
If you prefer a light with a 2 mm slightly enlarged head and neck, then you will be able to feel the RRT-0's enlarged/raised magnetic ring in the dark much easier, plus the slightly bigger head gives more throw, and the Jetbeams have much higher lumen performance at 255 lumens.
The RRT-0's beam performance is much better than the V10R.
However, that enlarged bulging head and raised neck can be felt in the back pocket of a pair of jeans more, and the bulging head with raised neck design doesn't hold with the overhand four fingers over the top hold, quite as comfortably as a simple straight cylindrical V10R...