Hello,
I'm using a current-limiting circuit to test out a CREE CXA1304 LED. It's max rated current is rated at 1A.
I've tested the current-limiting curcuit, set to 400mA, with a resistor as a load. Works.
BUT! When connecting the LED, I get a max of under 200mA, as though the LED had a high enough internal resistance.
For people experienced with such LEDs, does this sound like a defect (or a zapped LED, though I was careful with ESD band and all), or does the LED need to warm up to its 85C operating temp? Anyway, it seems odd to a power LED newb.