Light Arrow

The Light Arrow gives you're bow the Power of Light. Howerver, each arrow will use Magic Energy.

In Ocarina of Time, Zelda will enthrust you with the Light Arrows in the Temple of Time. They are needed to defeat the King of Evil, Ganon.

In Majora's Mask, they are found in Stone Tower Temple. They are used to turn the Stone Tower Temple upside-down.

In The Wind Waker, Link finds them in Ganon's Tower by fighting Phantom Ganon. They are also used to defeat Ganon.

In The Minish Cap, they are achieved after a few steps in a mini-quest, and are optional. Kinstone fuse with someone who looks like he's not from around here in a house in western Hyrule Town early in the game. Go to the newly opened portal, and use the Gust Jar to suck in the ghost circling the old man. Return later in the game, and talk to the man. You'll get the Light Arrows then.