All I can remember is it was around 94-95 or maybe earlier. It's about some giants that could throw electric charges from their hands. Also there were people that wore suits that you rub your wrists on some sort of stones and you got this electrical charge in your hand which you could throw.
This sounds like Spellbinder (1995)
Spellbinder (Polish: Dwa światy (Two worlds)) is a fantasy adventure /science fiction television series, produced by Film Australia and Telewizja Polska in association with the Australian Children's Television Foundation.
I don't remember it having giants, but it specifically does have suits with stones set in the wrist that you rub together to be able to throw balls of electricity. I also remember the effects being better.