I've change the textures of the saber of this mod
Blade Mod on MODDB for make a lightsaber that look like this:

It's with the color mod by ryosuke. And after that i've open up the dff for make a double light saber and it look like this:

There's not any brightness/glossiness and the only thing i've done is copy he lightsaber and put it a the back of the first for make a double lightsaber.I know that I've something to do with the model before exporting it but I don't know what. If someone could help me...