Yes, you'll need the electronics to go with that - wires, resistors and so on. You'll need an LED for the light itself, too. I'm not sure if the hilt includes the activation switch, or whether the Anakin button is compatible with it.
Someone with a better knowledge of building from scratch should be along shortly to give you the specifics
It may simply be a case of getting the LED and wiring it to the switch and button, but I've never done it myself so can't say for sure.
Good luck in your build!