It really depends on the cell. Flat tops that make contact in series should work as long as they aren’t button top. Clearance is tight and they fully compress the springs, so officially they aren’t recommended. It’s a case by case situation.
I really don’t understand why you say stuff like this. I’m saying “Huh?” to every sentence.
So like 100kcd to 134kcd and 200kcd to 268kcd? This sounds quite reasonable.
Since my L6 does 172kcd, if the SP70 had a SMO it could theoretically be capable of 230kcd.
I think Dale’s expectations were a 75% increase which seems too much in my opinion. Plus it seems Sofirn used a heavier OP than they said they would, based on the reports coming in. This is a bummer, they said they were going with a very light OP.
So you think the hot spot is about the same as the OP L6 and not 20% bigger? The same size is better than bigger, but in theory it should be a bit smaller. It can be really hard to determine hot spot size with OP reflectors.
Tom, I think you have a lux meter, can you measure the candela?
About the white Flat in the SMO/OP L6 reflector: I have done a few initial experiments a few years ago that show that throw difference between a SMO reflector and a OP reflector is highly dependent on the size of the die: you tested it with smallest die possible, while Sofirn tested it with about the largest die possible.
See the few tests that I did in my (unfinished/abandoned) reflector thread: Ongoing project: reflector testing
Right djozz, I tested the L6 with the small die intentionally to see what kind of throw the L6 may be capable of. I know when this 70 remake started it was supposed to target throw and power, a hot rodded factory light for the BLF demanding. But then things stalled and Sofirn took up the gauntlet and the ideaology changed along the way somewhere. I am probably closer to the original project because I have assisted the modding of the original prototype. Still, Sofirn made some body design changes that I liked even if the reflector wasn’t where I thought the whole plan was targeted to be. Compromises I guess.
It’s looking a lot like the entire project has been a long way around towards building a different L6.
The “25A” 26650s I ordered arrived. I’m very skeptical of the “25A” rating. IRs seem really high. Mine are between 0.15ohm and 0.25ohm. 0.25ohm seems VERY high for a “high drain” cell.
11.9A on the cyan Liitokala is not bad. We know the 70.2 has the potential for more. Maybe the FET or the wires are a bit too high resistance?
194 kcd is more than Sofirn’s measured 160kcd with light OP. If the texture is heavy, then the candela is even more impressive as they only measured 127kcd. Nice.
The texture does look pretty heavy.
You got 195kcd out of your black L6? Hmm, I can’t remember if I got the same, but decided to sacrifice a little in order to get a nicer-looking hotspot. My notes are showing 172kcd. Still close, though. I always go by what looks best as opposed to outright throw numbers.
Just tried a pair of GOLISI 4300's, solder blob'ed one. Got 14.5 amps, think about 205 kcd, same relative bump in lumens. The LED wires look decent, think about 18 AWG, but the double springs might have some loss's compared to bypasses I would use. Got slightly more amps on a pair of 25S charged to 4.21V - about 15 amps, but they would probably drop fast.
This took some time - needed to research thru my notes. My notes say the clear L6 has a XHP70 N4 1C, but it's beam tint is well warmer than the black L6 XHP70.2 P2 3B. The clear L6 is about a 4-5 even in tint, I'd say 4000K-4500K. I seem to recall this - think I got a mis-marked LED back then.
The SP70 is warmer than the S70S (~6500K), but cooler than the XHP70.2 3B, so could be a 1C or 2. This is consistent with how the beam looks and how the LED's look under UV light. The old S70S is a strong CW for sure.
@TomE, how close are the springs to one and another?
Since the light has been made with 26650 and 21700 compatibility in mind, the springs weren’t really designed with dual usage in mind to lower resistance.
Here are Sofirn’s specs, and look the inner spring height and thickness.
tail springs：
inner bottom diameter 10
inner top diameter 5.9
inner height 7.6
spring line diameter 0.7mm，
out bottom diameter 16
out top diameter 8
out height 13
spring line diameter 1.0 mm
I don’t even know what type of BeCu they are using.
Could be using C17530 38% IACS, or C17200 22% IACS.
Still, have you tried it with 21700s?
What’s the weight full of cells?
How is the UI?
