Second Generation Silver Plated High Current Beryllium Copper Springs and 95+CRI SST20!

I received the early bird SST-20s a couple days ago and stuck them in a few lights. In a D1S I get 670 lumens and 550m throw compared to 1000 lumens and 670m stock. There seems to be a tendency towards a ring around the corona with smooth reflectors, though it’s a lot more prominent in the Convoy C8. The tint isn’t horrible but it’s not spectacular either. This is an sw35 219B beside the 3500K SST-20 in the D1S.

Yeah the ring is a problem.

It makes the beam so throwy in some reflectors that it makes a ring around it.

Also, at what level were you running the test?

I’ve found that at 1A, unlike the LH351D T6, the GA3 SST-20 sits just below the BBL. Above it, it becomes rosy.

It’s way better than the LH351D, and a bit better than the PL47 without taking into account the shift of CCT.

On that note, I know that SKV89 and Bob_McBob have received their LEDs.

Knowing this, that means most people will be receiving their LEDs by Friday, and next week.

Got mine today! Just opened them a min ago, well taped up. I should first put one in a D1 because my attempt at a sliced SST-40 in there didn't work out so well. Also got couple C8F hosts, so these will go in one for sure, then something smaller, not sure yet.

Will the SST-20 be ok in a D1? I thought they couldn’t/shouldn’t be used in single emitter fet lights?

It should be okay, as its forward voltage is still high enough to limit current to a low enough level to not burn up.

My stock 5000K D1 draws about 6A at the tail with a fresh VTC6. The SST-20 D1S is about 5.5A with a fresh GA (trying not to push my luck).

How is the 219B not dead in an Emisar D1S though?

Its forward voltage is quite a bit lower than even the SST-20, so even someone like Tom E/DB Custom wouldn’t dare put this emitter in a FET light.

That’s an SC64c on the left :smiley:

Oh god I was worried :weary:

Also, guys, because of the Chinese Holiday, the manufacturer will not be able to make the springs until February 19th.

However, I’ve prepared all of the LED orders and the envelopes to ship when I receive the springs pretty much instantly after I receive them.

What were the final specs? Did removing a coil make it too small?

Final specs have not been finalized for the large spring yet.

I’ve already tried this for the small spring last time, but did not work theoretically, and the manufacturer advised against doing this too for the small spring.

It should work with a 12mm height, but I’m waiting for a response from the manufacturer.

Do you find the tint green IRL?

@BlueSwordM Any luck sourcing rosy 4000K? I didn’t realise the 3500Ks would be sent out before/separately to the 4000K.

Got my SST-20’s yesterday, Just wanted to give thanks. Very appreciative BlueSwordM. Thank you!!!

Thank you for publishing the list. Could you please reduce the SST20 4000K for me (line 5) to 20 pieces? And please add 20 small NICKEL-plated springs. My flashlights are really looking forward to get some high quality springs! :person_with_crown: :sunglasses:

Added to the list.

I will be starting to send PMs for payment February 4th, and I will be buying the springs on February 19th.

I will be doing this groupbuy as quickly as possible.

Also, there is a possibility I will be ordering more springs this time if a certain large buyer likes my large sample.

Just mounted/tested my first SST-20, the 3500K, on a 16 mm SinkPad II, in a little decent zoomie - the UltraFire U-F10. The beam tint is looking really nice and rosy. Wow! Compared side by side with my other U-F10 running a XM-L2 U4 1C dedomed, the U4 looks so green. So from stock (XM-L2 ~U2 1A), the lumens is down (320->201) but the throw is up (6 kcd to 10.2 kcd), but now, of course, it has great CRI and a great tint.

BTW, guys, I’ll have to remove the nickel-plated springs section.

I had 500 extra small springs left(200 did not sell, and 300 extra were errounsly sent by the manufacturer)

I do not have them anymore, except for MRsDNF small nickel plated springs.

Perhaps you could share the springs that are left?

The 40 nickel plated springs are literally the only ones left.


What happened to those springs?