There will be B35AR variant, but since B35AR does not work with DTP, it can only be mildly driven,
the brightness won’t be that impressive comparing to the multiple LEDs flashlight.
Nice to hear that, I’m still deciding how much current to use for B35AR. What is the brightness when you drive it at 2A? And which optic/reflector for B35AR?
AM would be preferable since efficiency of a boost converter is higher at 1S>6V vs 1S>12V, but I assume AR was chosen so that the same 12V boost driver for XHP35 can be used.
Regarding current handling, on a MCPCB with high thermal conductivity dielectric and thick copper pours it is reasonably good (7.6W/m.K, 3oz pours):
But those high perf MCPCBs might be cost prohibitive.
Sorry Hank but i’m still waiting for meassurement tool to come but it’s bright as xhp35 to my eyes.
But AR is available only in R9050 version only. Wouldn’t it be better to get AM version which is R9080?
At the moment i’m using B35AM in Convoy S21A with stock reflector and 3535 gasket which was trimmed a bit cause B35 is 3636 or 3737 format. Gonna try next weekend with TIR and report which is better.
Any cost associated with maximizing thermal performance at the mcpcb is well worth it. I’d gladly pay an extra 2 or 3 dollars per light to keep these Nichias cool. 3oz copper pour over the whole board and the thinnest dielectric should be sought out.