Actual Lumens readings in 6" dia. Lab Sphere IS with SC 5500 control

[MrGman]

OK, I just measured my L2 lens; it's 27.87mm diameter by 1.81mm thick. There's one listed as 28.6mm x 1.83mm; it should fit. Though there is a difference in it than the ones listed as for SureFires; it is listed as "UCL green tint AR" with 98% typical performance, and the SF ones are listed as "UCL blue tint AR" with 99%.

I just received yesterday and tested today the UCL from Lighthound.com (listed above) for the SureFire G2. It is slightly too wide in diameter to fit into the O-ring with lip that is part of the Solarforce Bezel assembly. However, taking out that O-ring, the UCL fits into the housing without being snug up to the side of the glass. I trimmed the lip off of this special O-Ring and put it right back in. There is also a plastic spacer that goes against the other side. So basically by trimming off the L portion of an L shaped O-Ring, I got the UCL that is offered as a drop in replacement for the SF G2 into the Solarforce L2 bezel.

I am guessing that the 26.8 X 1.85mm UCL that FLL has for the "MrBulk" flashlight would actually be a better fit to drop right into the special L shaped O-Ring of the Solarforce Bezel.

I will be testing the lumens drop of the ultra clear lens as soon as possible. The Integration Sphere I normally use went back to the factory for its regularly scheduled annual calibration check, so it may be a few weeks.

I can see looking at the lens I got that it does in fact have AR coatings on it and the tint is blue. If push comes to shove I could always order more of these and try and find the proper thin 1.25 inch outside diameter O'ring to simply replace the one that comes with the Solarforce Bezel.

 

[naked2]

MrG, have you heard about the new EagleTac T10C2 (and other) head and bezel design? There's a thread on LRF about it here.

I wonder if they (EagleTac) read your thread, especially the part where you adjusted the numbers for the T10C2 after finding out the shiny bezel "skews" the readings!

 

[MrGman]

Hadn't seen it till you posted your link, been real busy. Its very interesting. I can't see why they would do that just so some one could take more IS readings. The light doesn't actualy get "used" by just shining it in an IS. In the real world it doesn't matter and certainly doesn't hurt. Making it to have different options like crenellated or non Cr is a good thing. Giving it a bit more throw and less spill will probably make a lot of people happy but should not change the total lumens reading on Iota.

I am sure that they read my and other threads though, in regards to satisfying their customers in general and giving them more options to have what they want. I would not mind having this new head or simply a replacement reflector that I could just drop in with a lot more throw and less spill as an option.

In general I love my Eagletac T10C2 just as it is because it just flat out works great. Lights up a wide swath but has a generally brighter cental hot spot. Its just really useable for short to mid ranges out past 50 feet.

Thanks for the link update. G. :thumbsup:

 

[The Sun]

i just wanted to drop by and say...AWESOME JOB GUYS!!!! keep up the great work!:thumbsup::thumbsup::thumbsup:

 

[Mjolnir]

I'd be interested to see how the regulation with 18650s is on the new T10C2 compared to the T10L. What I would really prefer would be a smooth reflector for the T series designed for more throw instead of a separate semi-different light.
I'm kind of annoyed that the new light doesn't rely on the bezel to keep in the lens like the old T series lights. I would have really preferred how the lens is on the T10C2 L on my T10L. It seems like they are trying to fix the issue of lenses shattering when the light impacts something that some people have had. It sees to me like they are acknowledging that the original design was problematic.

 

[kramer5150]

Awsome work!!! keep it up, thanks!!!
I had no idea the P60 bezel design blocks that much light... very interesting.

 

[Alan B]

Awsome work!!! keep it up, thanks!!!
I had no idea the P60 bezel design blocks that much light... very interesting.

I agree, it is awesome work, and we appreciate it very much.

I'm not sure the "bezel blocks that much light". It might be more accurate to say "the bezel affects the calibration that much". The light in an integrating sphere bounces back and forth many times, depending on the reflectance of the surfaces. This causes the light to hit the bezel many times - not just on the way out of the light. The presence of a dark material changes the calibration of the system, possibly more than it changes the light output of the flashlight.

Things like this are why it is so hard to get good accurate data, and it makes it hard to accurately interpret the data that is collected.

 

[jenskh]

yes, the thruth is not always the truth

 

[richardcpf]

I would like to see some testing with the Surefire E2DL.

There is so much discussion about this light being brighter (overall output and in ceiling bounce test) than a Malkoff M60 rated at 230lms. Personally I don't think this is true, since we only look at the hotspot and not the entire beam pattern. 6P is rated 80 lms and was measured 82, so it is not very probable that the E2DL claimed 120 lms doubles up and beat a Malkoff drop in.

 

[MrGman]

The reported 180 plus lumens by some others from their "white box" or ceiling bounce tests I don't believe to be accurate either. I have already said in a couple different threads that a friend of mine has a new E2DL and that he is going to let me test it, the integration sphere is out for Calibration, so a little more patience is required. I have already seen his unit and compared it to various lights on his high cathedral ceilings and he and I both knew the answer as to what was brighter, you however, still have to wait yet a little while longer.

 

[PhantomPhoton]

Thanks for taking your personal time to satisfy our shared interests and questions. I'm quite interested in the results of the E2DL when you get them.

 

[MrGman]

I just received yesterday and tested today the UCL from Lighthound.com (listed above) for the SureFire G2. It is slightly too wide in diameter to fit into the O-ring with lip that is part of the Solarforce Bezel assembly. However, taking out that O-ring, the UCL fits into the housing without being snug up to the side of the glass. I trimmed the lip off of this special O-Ring and put it right back in. There is also a plastic spacer that goes against the other side. So basically by trimming off the L portion of an L shaped O-Ring, I got the UCL that is offered as a drop in replacement for the SF G2 into the Solarforce L2 bezel.

I am guessing that the 26.8 X 1.85mm UCL that FLL has for the "MrBulk" flashlight would actually be a better fit to drop right into the special L shaped O-Ring of the Solarforce Bezel.

I will be testing the lumens drop of the ultra clear lens as soon as possible. The Integration Sphere I normally use went back to the factory for its regularly scheduled annual calibration check, so it may be a few weeks.

I can see looking at the lens I got that it does in fact have AR coatings on it and the tint is blue. If push comes to shove I could always order more of these and try and find the proper thin 1.25 inch outside diameter O'ring to simply replace the one that comes with the Solarforce Bezel.

I just received the 26.8mm UCL glass from FLL to test with the Solarforce Bezels. They fit right in and are not too small such that the L shaped O-ring isn't pressing them. So I just installed 3 of them into 3 of the Solarforce Bezels, 2 non crenallated and one with crenallations. So now I have a low budget L2 host system that has AR coated glass, 4 lights thus far. Still waiting for the IS to come back from Cal. on the east coast before I can take some readings.

 

[kramer5150]

Thanks for taking your personal time to satisfy our shared interests and questions. I'm quite interested in the results of the E2DL when you get them.

x2... Its really under rated, either that or just about everyone else is severely over rated.

 

[Patriot]

This thread just keeps getting better. My only question is why hasn't it made it into the review section yet? :thinking:

 

[MrGman]

This thread just keeps getting better. My only question is why hasn't it made it into the review section yet? :thinking:

I think its actually better right here.

I see some new test results coming up closer on the horizon.

 

[9x23]

I think its actually better right here.

I see some new test results coming up closer on the horizon.

MrGman,

Thank you for a superb job and excellent information! For a new test subject how about a Jetbeam M1x? Look at post 194 here....
http://www.cpfmarketplace.com/mp/showthread.php?t=188709&page=7

I anxiously await the results!

9x23

 

[electric sheep]

Fitted a UCL lens to my CL1h V4 after sizing it to fit and have noticed a better brighter beam by eye. Not very scientific but there is a improvement.

 

[MrGman]

I have added some new test data on the original chart on page 1. I got the Lumens Factory 380 lumen (bulb lumen rated) incandescent and put it in my Solarforce L2 18650 host with one 18650 extention and my new A/R coated glass into the bezel (non crenellated) So now I am getting optimum through the glass readings. This will be the standard for all testing here on in, AR coated non crenellated Solarforce Bezel, not the Surefire with Pyrex window. The light output is actually right around 71.6% of rated bulb lumens from the vendor, so thats not bad.

Of course that's an incan, nobody cares about that. I also tested a new Dereelight 3 mode R2 pill donated to the cause of science from FlashCrazy (big thank you). I tested its regulation with a DC power supply at work.

At 6V it drew 1.0A at 10V (rated to 13V) it drew 0.6A. And had a linear reduction of current draw in between. So that's a constant 6 watts from the power source. Tested with A/R coated glass in the bezel to compare to all those factory flashlights that of course come with A/R coated glass already, results are on page 1. Very comparable to the Malkoff and Fenix T1 at peak and warmed up output. Has a slight purplish/blue tint.

As to 9X23 (isn't that a commie pinko russian caliber? (I like it)) and testing request of the Jetbeam MX-1. If you have been doing your homework, you would know that I can't fit the larger reflector heads into the smaller 1.5 inch opening of the 6" sphere.

If we get wbp's larger sphere fully calibrated to our top secret plan, then we can use that, but he's too busy making real $$$. Can't say I blame him. More secret projects are on the short list. G

 

[9x23]

As to 9X23 (isn't that a commie pinko russian caliber? (I like it)) and testing request of the Jetbeam MX-1. If you have been doing your homework, you would know that I can't fit the larger reflector heads into the smaller 1.5 inch opening of the 6" sphere.

Ha ha ha ha......well, I think you might be referring to the lightweight 9mm largo (some call this 9x23) that was of Danish decent. I would like to believe that my "9x23" refers to the IPSC catridge developed by Winchester in the mid 90's in the good ole' US of A and making major power factor!

Sorry, I must have missed that part about the 1.5" opening.......I guess I have to work on my speed reading techniques.

Keep up the great work! It certainly helps me make informed purchasing decisions.

9x23

 

[MrGman]

"Ha ha ha ha......well, I think you might be referring to the lightweight 9mm largo (some call this 9x23) that was of Danish decent. I would like to believe that my "9x23" refers to the IPSC catridge developed by Winchester in the mid 90's in the good ole' US of A and making major power factor! "

Very good you passed yesterday's quiz. Yes if I had a larger port opening I could test my various mag light with Malkoff modules in them myself and my brandy spanking new Solarforce L900M 2X18650 P7 LED module. Now that's talking major power factor. It is ridiculously bright, more so than the Malkoff Triple Drop. That is why I have to finish working with wbp to get his 12 inch sphere system calibrated as best possible so we can get more readings of these mega monsters. :tinfoil: