How can you tell from a data sheet if LEDs are analog dimmed or pulse width modulated? I've attached the data sheet or you can view it here:

http://www.adafruit.com/datasheets/FD-115TRGB-A2.pdf

Thank you!

 

These are just the bare LEDs, the method of dimming them is up to you. PWM is better in many cases because of power efficiency and better brightness control. however, if they are used in a fast moving device relative to the viewer's eye, analog may be better because of the persistence of vision issues - the flicker is not noticeable over 80 Hz if stationary but faster movement can leave a trail (tail) of pulses - like the GM cars with LED tail-lights in the US.

 

Typically that question would be about the "LED driver" (constant current power supply) and not the LED itself as Gopher has already pointed out.
Drivers accept either PWM (5V or 10V PWM), Analog (1-10VDC), or resistance (100k potentiometer) dimming "signals"..

 

What's Ward Cunningham's theory? (I know he invented "the first wiki" but what's the theory? That someone on the internet will catch and fix your mistake?)

 

You mean this?

"The best way to get the right answer on the Internet is not to ask a question, it's to post the wrong answer."

 

These are just the bare LEDs, the method of dimming them is up to you. PWM is better in many cases because of power efficiency and better brightness control. however, if they are used in a fast moving device relative to the viewer's eye, analog may be better because of the persistence of vision issues - the flicker is not noticeable over 80 Hz if stationary but faster movement can leave a trail (tail) of pulses - like the GM cars with LED tail-lights in the US.

Thank you! I appreciate it.

 

Typically that question would be about the "LED driver" (constant current power supply) and not the LED itself as Gopher has already pointed out.
Drivers accept either PWM (5V or 10V PWM), Analog (1-10VDC), or resistance (100k potentiometer) dimming "signals"..

Thank you!

 

You mean this?

"The best way to get the right answer on the Internet is not to ask a question, it's to post the wrong answer."

Haha nice. Thanks!