@ElvisRV I don't believe you. I don't mean that I'm distrusting you, I mean I don't believe we're in agreement about semantics here. You might not consider what you're seeing a "pulse" but it has to be doing it. It works by building up current in a capacitor and then releasing it. By definition, it creates what many would call a pulse. Either that or yours has different electronics in it, but I highly doubt that. Even a weak capacitor would look more like a shimmer, but it would be pretty dim.
I could also describe it as a fast heart beat. The capacitor fills up, it releases that current as a burst of electricity, the LED lights up bright, then slowly fades when another burst of electricity hits and repeats the cycle. There would be no reason to use a capacitor if they didn't want it to pulse.
@GermanBoldItalic Yoda pulses too but it's faster than the others. Green is a very easy LED color to display, so they may have used different capacitors in the figures (a weaker one in Yoda, which fills up fast and discharges more often). My Anakin is also the slowest pulse, which is an odd choice since Obi-Wan has the same color saber. Blue is such a dark LED color, they probably use a larger capacitor to build up enough charge before it pulses. I don't know why Anakin and Obi are different though (my Luke is like Obi-Wan's if not slightly brighter).
Also, while we're talking about them, their saber color is wrong. The plastic is fine; it's a light blue. But with the medium blue LED inside, it makes the whole saber look very deep blue, and that's not anyone's saber color. Wish they had either used white or light blue for Anakin and Obi-Wan (and Luke). It's a nice looking blue, it's just wrong if we're looking at the source material.