Esplender is Gamu Takayama's transformation item. With it, he can transform into Ultraman Gaia and fight the monsters. After Ultraman Gaia defeated C.O.V, he turned back into Gamu. Gamu found a strange light on the battle which he sensed was important, using a photoelectron tube he had on him, he took it.
Related Post : Source : ultra-wikia
