Each umbrella has a different Lightsaber hilt (slightly scaled down for easier use).
While it doesn't light up, each shaft is anodized in the proper color for the saber's blade.
Each umbrella part has silk-screened insignia (either Jedi or Imperial) of the corresponding faction of the saber's owner.
Choose yer saber:
Anakin - blue shaft - Jedi insignia
Darth Vader - red shaft - Imperial insignia
Obi-Wan - blue shaft - Jedi insignia.