-- Harry extinguishing his wand light before watching Voldemort kill Snape in the Shrieking Shack (DH32).
The Wand-Extinguishing Charm turns off the light cast by the Wand-Lighting Charm.
References from the canon
- Harry and Hermione used this spell to extinquish the lights on their wands in the Shrieking Shack (PA17).
- Harry used this spell to extinguish his wand while crawling into the Shrieking Shack where Voldemort was watching over the Battle of Hogwarts (DH32).
Dark Forces: A Guide to Self-Protection