POWAAAAAAAH! UNLIMITED POWAAAAAHH! \m/(>O<)\m/
The force lightning here is purely artistic. Turns out, Darth Vader can't use force lightning due to his severed arms and legs (which is a bummer)... The electricity would simply short-circuit his robotic limbs. George Lucas himself confirmed this and his word automatically makes it canon...
"look ma, no pick!"
Wallpaper size: 1600x900