cant wait for some beam shots or just some comparison chatter. id like to know if it throws further and does or does not have a floodier beam/spill than the j12, and the king, dry, or tm11.
if floodier, can this be one of the floodiest lights available then?
Just extrapolate it. Just take TK70 to be ~ 2200 lumens OTF. It could be 2100, could be 2300 as well, donāt know. But seriously thatās ok and definitely much more accurate than a DMM current measurement which has even more + bigger variables.
Aaaah I see. You should note that the TK70 is claimed at around 2300 but has never been tested. The TN30 has been tested, although by home made setups, to be around 2700 lumens. Hence my estimate of around 4000 lumens for the Sky Ray. Iāve ceiling bounce tested heaps of lights of various sizes, about 30, and it fits my testing more accurately to say the TK70 over produces than the TN30 only give 2300 lumens. When I say fits I mean comparing all the tests to factory claimed lumens(non chinese ), and tests on CPF. Iād love to see one of the āprofessionalā testers on here or CPF get their hands on this one.
Actually there have been several verifications of the TK70 to be correct for the OTF lumens. Just that the lux reading by Fenix is a bit on the high side.
I am also basing this with my collection of nearly 100 lights.
Donāt have to be CPF only for the sole source of information, but from german/russian forums as well.
PS. Donāt have to be worried about the lumens definition, that is why we always use āOTFā which means Out-The-Front. All standardised already.
You are saying that the TN31 is 2700 lumens OTF and 125 on your meter? / If you have another known thrower + well driven light like Crelant 7G9/Olight M3X/SWM T40CSā¦.thatād help as well if we could have those figures.
I was taking TK70 to be 120 as per your 1st post, so i guess thatās 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 thatās the case then it might be a bit better for the Sky Ray. If we use a factor of 20, then itās 175 x 20 = 3500. You mentioned 185 as well (initial reading?). So thatās 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 leadsā¦ā¦and TF 26650s, you can have a better idea then. I can supply my results with the TF X100.
Yeah, most likely worst case scenario of 3500 lumens OTF. Using āOTFā is great, coz it doesnāt care how much the glass is cutting, how lousy the reflector is, driver efficiency etc.
But as always, to notice a jump in brightness, youād need a min of 20% and thatās 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 donāt 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 Iām 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 arenāt 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 Iāve 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 whatās that? 300 metres for the Sky Ray. Not bad for a flooder.