cjdelphi:
I don't have a problem.... or a question.I've had a 10watt LED running at 1amp (no current regulator) quite nicely, nice stead 9.7v for the past 2 hours, it's hot to touch but it's just fine, i'm using a 30watt CPU cooler, working just fine.
That's cool. As long as other people understand that driving such high power leds 'correctly' is via a constant current driver, not a constant (or even adjustable) voltage regulator. As you have found out that is not a fixed requirement just the recommended best engineering solution, and that is all that needs to be said on the matter.
Lefty