the suits Luke and the gang wear do different things based on the user.
Luke's suit lets him make energy wolf heads when he punches something for more damage, it can also shoot energy balls.

the suits run on crystals that act like a battery they are very rare in the universe each suit has 4 of them located on the shoulders and knees. Luke's suit has 6 mini one located on his knuckles for more output energy to do more damage. The suits are rechargeable and recharge with photosynthesis like a plant does to make energy. The crystals are as hard as diamonds maybe stronger so don't worry about them breaking in combat it would be almost impossible.