www.recumbents.com wrote:I just received my 12-90V light today. It looks like a resistor inside the light, but it is really a thermal switch (labeled ZH KSD-9700, 250V 10A 65 degrees C). That's 150 degrees F. I think the in-line DC-DC converter is performing the current limiting duties. Mine did not even have a back on the light, so the thermal switch is in plain view. I'll post some test results later.
Thanks, that makes a lot more sense. So the driver is an actual CC LED driver - it just has a wide input range. That also means that you really can't run the light off a 12v source without the driver module.
If anyone can tell more specifically which actual LED emitters are in this thing, I'd be interested. Close-up pictures might help. Thanks.