Has anyone compared a TK70 to a TN30 with the same meter?
TC40CS(U2) - 41 or 943.
TN11S - 40 or 920.
Crelant 7G5V2 - 40 or 920
I was taking TK70 to be 120 as per your 1st post, so i guess that’s a bit off.
I actually had 2 TK70s, one was very slightly driven better. But very slight. But 2200 lumens OTF is more or less correct. TM11 might not be a good candidate due to the long history of the small driver quirks here and there.
If that’s the case then it might be a bit better for the Sky Ray. If we use a factor of 20, then it’s 175 x 20 = 3500. You mentioned 185 as well (initial reading?). So that’s 3700.
If we take 21 then it gets quite close to like 3900 lumens OTF. Seems possible to be a wee bit better driven than the X100.
These lights also have drivers which regulate the power a bit differently when driven with 2 cells, 3 cells and 4 cells. The J12/J18/X100 all exhibit this behaviour. The 2 cells might be a bit brighter. This has been documented in the X100 thread as well as on thaicpf.
The T40CS is quite a good candidate. Well driven + well heatsinked, stable driver. It is advertised to be 788 lumens OTF. I measured it to be in the same ballpark as well.
So seems to be factor of 20 is better.
If you have a good DMM/short leads……and TF 26650s, you can have a better idea then. I can supply my results with the TF X100.
Sorry I typed my first reply to you with figures from my head. Doh. I have since edited them. Upon reflection I agree with your figure of 20. 
Damn, you got my fingers itchy again.
I am sort of waiting for the 12 XM-L model. :party:
Given the adjustment I’m still even more confident that the Sky Ray is on the WOW side of 3500 lumens.
Yeah, most likely worst case scenario of 3500 lumens OTF. Using “OTF” is great, coz it doesn’t care how much the glass is cutting, how lousy the reflector is, driver efficiency etc.
But as always, to notice a jump in brightness, you’d need a min of 20% and that’s assuming with the same sized hotspot. So there really is not much of an upgrade from TF X100 to this Sky Ray.
Maybe you could get to a distance of say 7 metres and measure the lux? I guess you know how to convert to lux @ 1m or candelas, if not just post the RAW figure.
I don’t have anything with which I can measure the distance at the moment. How about I take some lux readings from the same spot with the Crelant, Sunwayman and Sky Ray? That way we should be able to estimate the distance given the previously tested, by you or others, lux @ 1m of the Crelant and the Sunwayman. And therefore the lux @ 1m of the Sky Ray. First I’m going to have to walk the dog though!
Yeah you could do that. The SWM T40CS and Fenix TK70 would be just fine. No problem you can walk the dog, i just had my dinner and going to bathe. LOL!
Try to do at least 7 metres, preferably 10m and above.
OK. Here goes. Please note that its as windy as hell so conditions aren’t ideal. Plus I may not have got the exact distance each time but it would be within a foot each time.
Sky Ray 225
Crelant 443
T40CS 485
TK70 107
If my T40CS is a slight over performer and the Crelant a slight under performer it looks like I’ve managed to measure at almost exactly 10m. Woohoo! I say that because Selfbuilts CPF test got 48500 for the Crelant and 46700 for the T40CS. You may have more accurate starting figures. My T40Cs definitely out-throws my Crelant by about 10% as I retested them together several times.
So what’s that? 300 metres for the Sky Ray. Not bad for a flooder.
So my lights are going to seem 10% dimmer now. :cry: 
You must be talking about the Crelant 7G5 V2 sicne you mentioned 48500. That is not a good candidate as a few here got underperforming copies as well. It was actually very evident even visible in the photos. ILIKEFLASHLIGHTS actually sent his back and the new copy was better.
The TK70 could be 1070 (times 10)? Anyway I got ~50k for the T40CS. *The Sky Ray 9 XM-L seems to be in the low 20k cd range, same as the Trustfire J12.
*The TF X100 is 38k cd, just shy of 40k.
I’ll put this as a seperate post for the benefit of others. Seems like this one is in the low 20k cd range.
Yeah it was the 7G5 V2. Mine is a bit crap evidently. So it sounds as though I was at 10m and you can simply multiple my results by 100. So 48500 for the T40CS. The Tk70 was 1070, sorry! So that makes it 107000. Does that sound ok for the TK70?
It’s a bit high, but i think some got 102k cd, believe it was saabluster’s. Sometimes it depends on the meter, when it’s close to the limit it could go a wee bit wonky (sensor thingy) due to non-linearity. Obviously other than the focus of the light, we try not to measure at 1m coz the powerful lights just does not hit the light sensor in its optimum range. (depends on the $$$ ie sensor quality but we shall leave that out in this case).
I got 93k cd. There are a few others in the 90k cd range.
It says it reads to 400000 lux. I got 167k for my de-domed SR90(it was an ordinary performer at 111K beforehand) and the hotspot, but not the dead centre, for my 55W HID. I got 719K for the dead centre of the HID!
xeno eo3??? isnt that like a penlight thats only 5 inches?
can you send me a link?
I would like this also.