Sorry, I’m not good at removing dome lenses.
Buck drivers and stonewash ti S2+ and Ti 18350 tube are all production.
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Excellent, thank you!
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Great to hear! May I ask how long estimated until they are available?
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I’m really happy to see these XHP emitters being offered in high CRI. Thanks Simon!
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You have chosen…wisely! Enjoy.
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While we are on the subject of GT FC40, why not Convoy 3x21 with that 12v emitter? Three cells, 12 volts sounds like a match made in heaven!
no suitable MCPCB currently
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GT-FC40 is the ONLY non-Nichia LED on market that has Nichia-class color rendering IMHO. I call it a Nichia imitator. You’ll love it.
In pic below, the 2 beamshots on left side: one is Nichia 219b, the other is GT-FC40 4500k from Simon, in M21B. I had a hard time telling them apart at first.
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Top left is 219b.
The 4500k FC40 I got looks like crap, so there’s some tint lottery in effect.
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Review of the S21E with XHP50.3 HI R9050 5000k is now up:
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I don’t think there’s any signing up.
Just follow the link and purchase. 
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Hi Simon, are the threads in the S21A: “ACME” which are 29 degrees included or “ISO Metric trapezoidal” which are 30 degrees included?
And is the pitch 1.5mm or 1/16"? Could you provide the thread specifications?
I would presume it is ACME with 1.5mm pitch.
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I believe all newer Convoys are square cut threads. My S21A, S2+ and M21B are all square cut. Older S2+ were trapezoidal threads.
The older s2+ had a truncated triangular thread, not trapezoidal. The S21A has a trapezoidal thread, it is not a square thread.
According to this review the S21A has square threads. To my untrained eye the threads also appear to be square on mine.
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