Originally posted by SunRazer
Luke literally disarmed himself when Palpatine unleashed the bolts, and in the novelization Luke's Deflection was initially successful to some degree. He isn't giving up his lightsaber here and Bane isn't remotely as powerful as Palpatine.
Still not proof that Luke can block Bane's lightning. Luke "deflected" Sidious' weak lightning before he increased the power and that's contradicted by the movie where he clearly doesn't deflect anything. There's no indication Luke knew how to block lightning with his saber either or would be effective with it.