Looking forward to my Tigger parcel, 
No problem Blue, payment sent for all!
Thank you!! 
. :+1: . 
PM and payment received for teacher, Texas Ace, and DBCustom, and vestureofblood.
I will ship their orders out at 3PM if the rest big buyers do not respond.
Also, I will take care of the other people who want to pay for their springs.
However, the group buy will have to be halted tomorrow, as I will be taking a plane to Europe, and will only come back August 17th. A surprise by my SO and family to say the least :+1:
So until then, I will not be able to order the smaller springs :weary:
Sorry guys, but this was a complete surprise to me.
No apology necessary BSM, have fun!!! :+1:
Blue, the 9th is my 56th Birthday, I won’t be taking any trips so feel free to have some fun on my behalf. 
(Ok, so maybe that’s not 100% true… when the wife see’s I spent over $50 for springs I may be taking a trip to the doghouse….)
Well, I finally shipped the springs to 4 people now:
- DBCustom
- teacher
-Texas Ace
- vestureofblood
I really hope you use them to their full potential.
I’m personally going to replace the springs in my Q8 and the MT09R, as these are the ones which could benefit the most from higher conductivity springs.
Thanks mate. Payment sent.
If you want to send me a bill now I will pay and you can ship when small springs get here.
I have a light that uses 2x21700 in series, pulls 48.8A at the tail, maybe we can find out the true potential here…
Perhaps. But your lights are an absolute monster. Even my springs won’t be able to handle 25A each.
I’d love to make a spring that can handle even higher power. 1.2mm wire diameter, 15mm height to account for 21700 support, Beryllium Copper C17510 60% IACS, etc.
That would be one heck of a spring, and even a wire bypass would be jealous. Could probably handle 25A+, unlike my 15A spring.
Also, I will PM you guys gradually, so you guys don’t need to PM me.
Sorry again.
Uh, one spring at the top end of the series 21700 pair, so this driver spring is handling close to 50A here. I had to use a $25 Tofty switch which has a 1/4” brass screw for contact.
My first build will probably be in an Eagle Eye X6 to 4 Samsung LH351D’s, that should be more down these springs alley. I need to build up a driver, have the emitters on the new Noctigon 33mm Quad MCPCB so I’ll be ready when the springs arrive, hosts should be in hand by then as well. I don’t know what these new Samsungs can pull, 15A or so?
Edit: It won’t be that high, tested outside of a light direct drive to an LG HE4 fresh off the charger it pulled 11.38A to the 4 Samsungs, so the springs should easily deliver what they need.
Ooops. Thought you made a 2S2P light because you said you put 2x21700 in series, and thought you put 4 cells in total.
And they will probably pull 13-15A at that power level. So probably 4500+ lumens.
That light is 3 XHP-70.2, it makes 20,000 lumens.
I’m going to build a quad X6 and use these new springs, single 18650. Direct drive shows less than 12A so it’ll be all right.
Also, once I get components together, I plan to use 9 of these Samsung emitters in a 4P 18650 Sofirn SF34 (like an SRK) with a BLF Q8 driver, so I’ll use 4 of these large springs on the tail board and see how they do there. It’s making 5000+ lumens with XM-L emitters on an aluminum MCPCB and stock springs.
BSM when we can expect small springs? And shipping both at all?
When I’ll come back from vacation, I will order the small springs right away, and ship them as quickly as possible.
Thanks, have a good trip
Thanks. I just can’t wait Have a nice holiday
My springs just showed up today! They look good and are real heavy duty. The nicest springs I have used that is for sure.
Yeah really nice springs.
I’d love to hear what are your thoughts on them by putting them in a real light, as springs behave differently when connected to a cell rather than a constant current load.