User blog comment:Lord Loss/Monster Hunter Frontier G 2 Discussion/@comment-16119585-20130911170756/@comment-4731324-20130911175114

^ Light element is one of the two new elements introduced when G came out. It's a combination of thunder and fire. When weapons have light element, the element that does the most damage on the monster part that is hit is the element that is used. Also, there is no new animation for light element. It's either thunder or fire, depending on the type of damage dealt.