Sofirn SP70 Alone $50, PM for AMZ US CODE(LIMITED)

Keeppower 6000mah

Quickly compared SP70 with L6 ,bigger hotspot than L6 and noticeably brighter.

According to the manual the SP70 will reduce its output once the driver‘s temperature exceeds 60°C. So, you should be safe running it on turbo. :slight_smile:

Can you post pics of your light……

That should not be the case. A bigger reflector with the same size emitter means a slightly smaller hot spot. Maybe you are referring to the corona? If your looking at it through a camera you have to use very low output levels to see the true hot spot size.

EDIT, are you comparing it to the new L6 that has the SMO reflector? That model might have a slightly smaller hotspot.

Definitely a larger hotspot,tried it on internal wall at 2 meters ,external wall at 10 meters and at bush across the park approx 150 meters.A rough guess about 20% larger.Sorry can’t post pics as I don’t use hosting sites.
Edit, old L6 unmodded with OP reflector.

This is in line with the Dale’s finding that the reflector is not parabolic on the schematic…

Old Lumens would say “It is what it is”

I’m not sure about that. A noticably bigger hot spot would mean much lower throw numbers, but our throw numbers are still high. I guess we’ll find out later.

It HAS low throw numbers Jason. Would have been nice to see 300Kcd or more…

You have a high powered L6 with an SMO reflector, right?
You know it can only hit about 172kcd, right?
Why would you expect 300kcd by going from a 63mm SMO reflector to a 73mm(?) OP reflector? I would not expect that big of a jump. Am I not understanding how significant a small bump in reflector diameter can be?

If the hot spot was visably larger than an L6 like gehrmo said (20%) it would indicate a much wider beam angle. You would then expect probably under 100kcd. Maybe under 60kcd. We are not seeing those crazy low numbers.

We are not seeing perfectly optimized numbers either because we know the reflector depth as a bit short for the diameter.

I would much rather wait till I can compare the lights side by side and take measurements. I prefer that to speculating.

I wonder if we can ask for a differently designed reflector for the BLF edition?

Can anyone confirm 21700 cells fitting?

Plenty of speculation in that post Jason for someone that prefers not to speculate.

Good that you tell me what I know, because I’m so forgetful and all. I do remember that I have smooth, OP, and Optic Convoy lights, boosted 35’s to 4 cell 35’s, MT-G2’s to 70.2’s. Do I need to put a White Flat in an L6 and see what the reflector is actually capable of? Nobody said this light had to have an XHP-70 variant in it… my little L2’s can sure blow away what this Sofirn light does, I know that.

As I’ve said, I paid for a Sofirn SP70 and it’s on the way, the speculation will soon end. :wink:

Dale, tell robo to get a Maxtoch X Pro and tell us about it

My SP70 is out for delivery, should be wait'n when I get home

63mm -> 73mm reflector diameter should get you 34% higher kcd.

Conducted an experiment. Cut the emitter shelf in an L6 to fit a 32mm MaxToch MCPCB, cut a copper heat sink to solder one of RMM’s 20mm drivers into to run a White Flat at 5.5A from 2 cells. In the L6, tested with OP reflector and clear polished reflector, the OP did 69Kcd, the mirror did 335Kcd. I know, I couldn’t believe it myself, ran the tests multiple times, but there it is.

I just stuck some Sofirn 4000mah 21700’s in there and they fit. The cells do stick out about an inch but it all screws up ok. The flashlight works fine but I would think the cell size is too big and will strain the springs. The cells were fine when they came out. No damage.

Dale - Ok, I'm wait'n to hear the amateur optical physicists explain this one... Actually I'm kind of serious on this.