I’m very sorry, I can’t provide a specific date.
Whenever it gets here, I can say pretty confidently this will be my first SBT90.2 light. Finally a form factor that makes sense for this emitter!
Have you seen the host/design? I would love to see it! I can’t wait to buy simons sbt90 light!
Heard it was going to be based on 4x18A, so 4x18650, single emitter design.
Much more reasonable than 1x21700 because the emitter can be driven with ~20A.
Mmm, sorry if late to the party but, how about using a (high CRI) “warm” white emitter? 2700K SST-20 or 2700K LH351D, for example.
That is what i was hoping Simon was going to do, i love my 21700 sbt90 lights, but a 4x18 would be much better! heat handling and power
Or 3x21700, see here:
Hey Barkuti, no problem, it’s always good to hear your 2 cents.
Don’t know, maybe warm white is better. Maybe red… :nerd_face:
I’ve decided to start with yellow since I remember some cars use yellow anti-fog lights. Warm white is typical for old-fashioned bulb lights and for some reason somebody decided yellow will suit better.
But it may also be some other color/wavelength is better (e.g. green or red) but not commonly used due to interference with colors meaning.
Well, first I’m gonna build the light, then we’ll see if any difference can be spotted.
Looking forward for the 4*18A with SBT90 !
Simon confirmed several times there won’t be 4x18 but 3x21 instead
I would be happy with that as well 
My wallet won’t, since i need to buy three new (matching) cells which i need to hold together.
Plenty of 18650’s though
Wouldn’t it be possible to use 3 pcs 21700 -> 18650 adaptors? Need only to make the springs somewhat tighter, to also hold unprotected 18650 in place.
There will be two versions
3*21700 with SBT90.2 and 4*18650 with SBT90.2
Nice
Simon (and the others)...
Will the 4x18650 version require to use button top batteries? If so, I will look forward even more to seeing the 3x21700 version.
Why? Because a) button top batteries are harder to get and b) button top batteries often add significantly more contact resistance, especially those with cheap joint-welded buttons that tend to rust quickly.
My hopes are that these new lights have a different battery compartment with brass buttons on the positive poles of the head unit instead of a brass ring (which requires buttons on the batteries).
Will the 21700 version work with unprotected Samsung BT 18650 30Q’s, using battery adaptors? Or will the 30Q’s be too short?
I think Simon uses this adapter for flat top batteries:
Awesome Simon! Other companies could take example from your thorough designs
Amazing! I don’t know if it could get any better.
18650batterystore.com you can get (3) 40t plus shipping for about $20 (US). But i know what you mean.