That’s correct. Positive end marked on the carrier with + in first.
If that is the case, I wish Solarforce has reversal voltage protection. Just to be safe as out of 100 insertion, occasionally it might happen once or twice.
I think it has a built in reverse polarity protection. At least that’s how it is advertised.
I wonder if the driver is as easy to mod to get more current to the LED as in the TN-31, can’t wait to see the beamshots! In the previous battle the TN won by a hair, let’s see how they do in round 2
This thread has comparison pics between TN-31 Vs. S1100
I’m off to take some beamshots.
Luckily you didn’t say I am off to go to bed. 
This might have to be put on my short list….
I can already tell you the TN31 is going to win going off what my eyes seen. But give me a few minutes and I will post them here. I just took 110yd shots with man 1.2 sec shutter f/4 ISO 400.
We will just do a mouseover to show you how bad the TN31 beats it. I'm still not understanding how this S1100 loses so much in the throw department outdoors. At 200yds you can easily see the TN31 takes over.
110yds
Mouse over TN31 mouse out S1100
Now can somebody explain why this is? The S1100 is a tighter beam thrower and brighter up close. It smokes the TN31 on a wall. But this same principle applies to the Jacob A60 when I tried to tell you guys that the Crelant 7G5, Olight M3X, Sunwayman T40CS, Olight SR51 Fenix TK41, and FandyFire STL-V6 will out throw it. But yet the Jacob A60 I’m sure is putting out more lux.
Would it have something to do with the purity / quality / depth of the reflector?
I’m just guessing here….
How do they compare in a quick ceiling bounce?
Looking at the comparison pics, I think the difference has to do with the parabola of the reflector, the TN-31 has less spill than the SF because it is concentrating it on the main beam, the SF has more sidespill that is being taken away from the main beam.
To my eyes, they are just about even, the TN31 just has a bigger hotspot, (like in the case of the TK70 compared to your throwers with smaller hotspots). Looking at the center of the pic, the light intensity of both light’s center hotspots are hardly distinguishable from each other.
Explanation is S1100 reflector is not working well putting all the lights in parallel line. Those lights needs to be “united” and stay in parallel line for as far as possible to reach far. In short distance, if S1100 output is higher than TN31, it might appear it has brighter hot spot. But those lights in S1100 hot spot is not in parallel as much as TN31.
From your beamshots, it looks like S1100 hot spot get scattered at far distance.
ILF, is the TN31 in your beamshots an XM-L2 or XM-L?
Ok first the S1100 on a wall there is no guessing or that it appears to be brighter than the TN31 because it is. It’s like sticking a Jacob A60 inside a Olight M3X beam on the wall. Your gonna see the A60 beam easily over the M3X beam. The S1100 refector is quite a bit longer and technically it should out throw the TN31. I’m guessing the reflector finish must have something to do with it. And for the record the TN31 has more spill than the S1100. At 200yds the TN31 kills the S1100.
I believe that it is the XM-L.
It’s an XM-L U2. Ma_sha1 who I bought that one from measuered it at 115,000 lux on his light meter. The one rikr has on a wall will easily beat this one. I would guess his to be around 125,000 lux. He’s got a hot one. But according to the pictures that rikr took of his TN31 and S1100 they were closer between his 2 samples than what mine are.
It’s an illusion. Get a light meter and you’ll see.