rlhess
Enlightened
What\'s the Ultrastinger got going for it? (mini review)
I had the great opportunity to borrow a dual-pattern (half stochastic, half smooth) Ultra Stinger from one of my favorite flashlight dealers.
It's a wonderful light if you want a rechargeable.
Here is what I found.
I could focus the bright central spot to be about 8% brighter than a SureFire SRTH--the SRTH is nominally 15,000cd when measured at 10 feet and the brightest I could get the Ultra Stinger was 16,000 cd at ten feet. (this is footcandles multiplied by 100).
The US had a central pattern which was about 1/3 the area of the Surefire SRTH. At 10 feet, the US's central hotspot measured approximately 6 inches in diameter (28 sq in), while the SRTH's was about 9x12 inches (85 sq in).
So, the SRTH is putting almost 3x the number of lumens into the bright center spot.
HOWEVER, what is really nice with the Ultra-Stinger is a second circle (about 3 feet in diameter at 10 feet) which falls off from about 1500 cd to 700 cd. This is a lot of light over a broad area--enough to illuminate shadows in a room.
This large area takes a lot of lumens to light this brightly.
The real-world test on my neighbor's pine trees, however, showed substantially more contrast and the ability to make out details of bark and needles with the smoother beam of the SRTH.
On the other hand, if I were going into a dark room, the SRTH is too specialized and the secondary beam of the US is great. The US's secondary beam is wider than the beam of a P90 or P91 lamp assembly, also.
__IF__ I wanted a rechargeable light, I think an US would be a great choice. However, I prefer primary lights as I keep them more for emergencies and infrequent use.
So, the US is going back (it was a loaner) but is staying as the one rechargeable light (exclusive of the banana spotlight) on my Web page. I feel better putting it up there now that I've evaluated it.
Cheers,
Richard
I had the great opportunity to borrow a dual-pattern (half stochastic, half smooth) Ultra Stinger from one of my favorite flashlight dealers.
It's a wonderful light if you want a rechargeable.
Here is what I found.
I could focus the bright central spot to be about 8% brighter than a SureFire SRTH--the SRTH is nominally 15,000cd when measured at 10 feet and the brightest I could get the Ultra Stinger was 16,000 cd at ten feet. (this is footcandles multiplied by 100).
The US had a central pattern which was about 1/3 the area of the Surefire SRTH. At 10 feet, the US's central hotspot measured approximately 6 inches in diameter (28 sq in), while the SRTH's was about 9x12 inches (85 sq in).
So, the SRTH is putting almost 3x the number of lumens into the bright center spot.
HOWEVER, what is really nice with the Ultra-Stinger is a second circle (about 3 feet in diameter at 10 feet) which falls off from about 1500 cd to 700 cd. This is a lot of light over a broad area--enough to illuminate shadows in a room.
This large area takes a lot of lumens to light this brightly.
The real-world test on my neighbor's pine trees, however, showed substantially more contrast and the ability to make out details of bark and needles with the smoother beam of the SRTH.
On the other hand, if I were going into a dark room, the SRTH is too specialized and the secondary beam of the US is great. The US's secondary beam is wider than the beam of a P90 or P91 lamp assembly, also.
__IF__ I wanted a rechargeable light, I think an US would be a great choice. However, I prefer primary lights as I keep them more for emergencies and infrequent use.
So, the US is going back (it was a loaner) but is staying as the one rechargeable light (exclusive of the banana spotlight) on my Web page. I feel better putting it up there now that I've evaluated it.
Cheers,
Richard