Lumos Maxima

Lumos Maxima is stronger version of Lumos.

History
In 1993, Harry Potter practised the spell under his sheets at the Dursley's home.

Behind the scenes

 * Despite using this spell outside school while staying with the Dursleys, Harry was not punished by the Ministry of Magic.
 * This spell was created for the third Harry Potter film and does not make an appearance in any of the novels.

Appearances

 * Harry Potter and the Prisoner of Azkaban (film)
 * Harry Potter and the Half-Blood Prince (film)