I am not sure if this is ANH Luke or if it is an Anakin Saber. How do I know the difference. I also have questions.
1. Masters Replica Luke or Anakin?
2. How do I remove the speaker from the battery holder? (It got sand in it and is quiet)
3. Can I replace the blue LEDs in the saber with Greens and still have it retract and open when turned on or off?
4. How much brighter is it if I replace it with one big green L.E.D?
5. Who is the best person to order parts from?
This is an MR Anakin:
This is an MR Luke ANH:
Which does yours look like?
The speakers are inside the battery packs, and changing them on those particular sabers is difficult without causing permanent damage to the battery pack/holder.
Changing the blue led string for a green one would be difficult if you wired it yourself, as Wolf10100 mentioned, but fairly easily done if you can find a green string from an 2005 MR Luke ROTJ.
converting the saber to a single green led will be significantly brighter, but you will lose the scrolling power up/down effect in exchange for a simulated one where the led fades off on power down (power up will be nearly instantaneous).