Ultraman Seven is the first Ultra Warrior to have a beam light on his forehead. For Ultraman Seven himself, the beam light on his forehead is a timer. Although Ultraman Seven is the second Ultra Warrior released, his settings are different from other Ultra Warriors. The beam light on the head is not only a timer, but also can release light skills. This ability should be considered a frequently used ability.
Ultraman Leo also has a beam light on his head. This beam light often appears in his own plot. He has used the beam light to release light skills many times to defeat monsters. Although Ultraman Leo is the King of Fighters and rarely uses light skills, it cannot be denied that he has few types of light skills. In fact, he has a very large number of light skills. It can even be said that he is different from most Ultra Warriors. There are almost the same types of light skills.
The beam light on Ultraman Ace's forehead is very powerful and has many special abilities. The first is to release light skills. He was the King of Light in the Showa period. He basically used light skills to kill monsters. The second is the function of storing energy, and the function of gathering energy. The last step is to use the beam light on his forehead to release Ultra's signature. This ability is only used by Ultraman Ace in the plot.
Ultraman Taro also has a beam light on his head, but his beam light does not play a very important role in the plot. Simply put, it has not been used. At most, it is used to release light skills. The first Ultra Warrior I saw was Taro. I have never seen the beam light on his forehead have any function or ability. Could it be that it was just a decoration?