So, I have a question: my M21B GT-FC40 should be coming relatively soon, and I know the driver itself outputs 12V at 2.5A.
Since I’m going to be ordering some 6V GT FC30 samples very soon, I’m wondering how I could actually change the output voltage and current itself on the 12V driver to make it work at 6V 3A/4A.
I’ve tried looking at this thread to help me out, but I can’t seem to find anything very detailed on the subject:
You change the value of top resistor of the FB voltage divider for ~6Vout, with the example of the XHP35 driver you linked, the top and bottom resistors are R16=470k and R17=47k :
top R = bot R x (Vout - VFB) / VFB = 47 x (6 - 1) / 1 = 235k
Then you adjust the current sense resistor for the desired current.
Simon, any idea when this new light gray MAO will be available in the S2+? With an 18350 tube as well? Pretty please?
I need another S2+ but with a 519A 4500K.
I’m not sure about 3X21A because there’s also that triple version too. Based on the below photo from 1Lumen, I suspect it’s larger than 25MM and I also suspect the SBT version’s MCPCB is the same size.
You can see that the space around the MCPCB in 3X21A is much narrower than the space around the PCB in 4X18A so 3X21A must have a significantly larger MCPCB.
I suppose it would be possible for Simon to have multiple holes drilled to support different MCPCB sizes though, which would be an interesting solution.
I’m intrigued by this as well. They SEEM to be interchangeable based on these listings from Skylumen where the body tubes are swapped. I know S21A/B will Lego, and S16, S21D, and S12 all use the same body tube AFAIK. Theoretically they’ll all Lego. Hopefully Simon can confirm.
For the forward switch, you can buy this pack of forward switches, trim their leads a little shorter, and solder them to the stock PCB after de-soldering the stock reverse clicky switch. Then just cut the nub off the inside of the rubber switch boot.
Received a load of Convoy lights today, so here’s an updated unofficial and incomplete list. Disclaimer: not double checked, so no guarantees! This is purely based on my own purchases (and only certain host colours and emitters, no idea if this matters).