If it is a SureFire Fury, that would put the output at 500-600 lumens and lux of about 10kcd. Those are reasonably good numbers. Nice build quality and great beam profile. (But you pay a premium for the SureFire brand name. )
On paper, any of these choices will outperform the Fury.
My personal opinions regarding them:
Brinyte B158. It’s a flood-to-throw. You are probably aware of the flexibility that comes from being able to zoom wide to narrow focus, so I’ll comment on the negatives:
- Loss of lumens. Because of the way zoomies are constructed, they will inherently incur a lot of loss. Zoomed wide, they lose the outside edge (say 10% to 20). Zoomed in to a tight focus, they lose anywhere from 20 to 40% of the total LED output.
- Unnatural beam profile. Zoomed wide, the beam is a relatively flat sheet of light that abruptly cuts off at the edges. (Fully zoomed out, my perception of the beam is an area “washed out by nothingness”.) To compensate for this effect, I tend to narrow the beam down to my focus area - in effect, compensating for the evenly distributed spread of light by concentrating it into a smaller area. Alternatively, I choose a much higher output level to flood the area with more light. Personally, I would rather have a beam that is more intense in the target area and smoothly feathers to the periphery.
- Much of the enthusiastic praise generated for this flashlight comes from its potential for modding. If you plan on using it in its stock form, you won’t be getting as much value out of it.
Convoy C8, Thorfire C8, or XinTD C8. These are mini-throwers. They excel at mid-range activities (say 10M to 100M), with diminishing utility up to 300M. For closer work, the spill is usable - but the bright center spot tends to overpower the view. The flashlight can be used for tasks such as picking up rubbish, it’s just not the best choice for such tasks.
D80. I don’t have one yet (it’s being shipped) nor do I have a Fury, but based on the few beamshots that I’ve seen of the D80 and what I know of SureFires, I would guess that (a) the D80’s beam profile is the one that most closely approximates the Surefire’s and (b) the Surefire’s beam profile is much smoother. SureFire prides itself on producing a nice beam, so I’m sure that its beam feathers evenly from bright center spot to spill and is free of any noticeable rings or artifacts. There are a couple of downsides that I would like to point out about the D80.
- First, it has no low voltage cutoff or warning function. So, you need to make sure that you don’t run your battery too low. While this may not be an issue for you to remember, it might be a problem if others are going to use the flashlight. (Or you’ll need to rely on the battery’s protection circuit, which is another problem.)
- The battery tube length is limited. Not all protected cells fit. An effort is underway at the present time to figure out which batteries do and do not fit. GB BLF LuckySun D80-SE Need long tubes? -3/3/16