Yeah this statement is correct actually. You started talking about PWM, but that's not what I described above. I said 1 amp of solid current Still, It's best to have people keeping me in line though, I would hate to be misleading people on this stuff when it's already complex enough.Erv's board putting out 1 amp of solid current is 100% exactly the same as a resistor putting out 1 amp for LED brightness.
Current is current, no matter where it's come from. That's the essence of what I was trying to explain. What differentiates one luxeon "driver" from another is the special effects it applies to that current. How slow/fast/deep/shallow does the current pulse? A sharp spike in current, or a slow rolling hill? Those are the features we pay the big bucks for with special LED driver boards.
A driver board from the LED's perspective is like a variable battery. It literally "drives" the LED. A resistor is not really the same, it sits in series with that LED and statically burns off voltage in the form of heat and limits current flow through the LED. Both methods control current flow, but they really are pretty different. Having said that, if both methods are delivering 1 amp of non-varying current, then from the LED's perspective it's effectively exactly the same and will result in the same LED brightness.
Thanks!
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