Hi,
I’ve been testing that 1st driver on the bench tonight, and despite the comments in this thread:
it looks like this driver (1st on my list in the OP) may be able to DD at high amps.
I am using a benchtop power supply (30V/5 amps), powering that driver, and have two XM-L class emitters in parallel (for now, just to see what the driver does), and it looks like that driver can output pretty good current.
Here’s what my jury-rigged setup (apologies for the mess) looks like. The power supply is the background, and I’m moving the clamp meter between the 2 emitters on separate tests, in order not to leave it powered on for too long and kill the emitters, since they’re not heatsinked… just floating in the air:
And, here’s when the power’s on:
With 4.5 amps into the driver, I’m seeing about ~2.75 amps through one emitter (the newer one) and ~1.7 amps through the other emitter (the older one), i.e., ~4.4+ amps through both emitters.
Again, this is with a bench supply, so to get that kind of performance with this driver, I’d need to use a battery that can source 4.5 amps.