The Wand-Lighting Charm Duo[1] (Lumos Duo) is a variation of the Wand-Lighting Charm. It creates a focused beam of light from the end of the wand.


Casting this charm causes an extremely bright, intense beam of light to emit from the tip of the wand, which can be used for a variety of purposes.

For instance, the spell's light forces ghouls to retreat and hinkypunks to solidify, and therefore can be used as a defensive measure. The light can also be used to attract Chizpurfles, which are attracted to magic.



During the 1993-1994 school year, Professor Charity Burbage, who replaced a wizard as Professor of Muggle Studies class at Hogwarts School, placed a spellbook detailing the use of this spell in the Muggle Studies Classroom at Hogwarts Castle for unknown reasons, presumably so that she could use it.

During that year, third year Gryffindor student Ronald Weasley found Professor Burbage's spellbook and took it. He then proceeded to read the book and learn this Lumos Duo spell, and used it against several hinkypunks. He also used it to free Neville Longbottom from the ghoul in the classroom, who was harassing him.

This charm is also learned in third year Defence Against the Dark Arts classes at Hogwarts School of Witchcraft and Wizardry.


The incantation derives from Latin "lumen", which means "light", and "duo", which means "two"; therefore, the incantation comes together to mean "two light" or "light two".

Behind the scenes


Notes and references

Defence Against the Dark Arts (D.A.D.A.)
D.A.D.A. at Hogwarts
Classroom 3C · Temporary Classroom · Hogwarts Turris Magnus · Teacher's Office · Storeroom · Staircase · Lesson Cup · Race Cup · Dumbledore's Army
Arsenius Jigger · Albus Dumbledore · Galatea Merrythought · Patricia Rakepick · Quirinus Quirrell · Gilderoy Lockhart · Remus Lupin · Bartemius Crouch Junior (as Alastor Moody) · Dolores Umbridge · Severus Snape · Amycus Carrow (as Dark Arts teacher)
The Dark Forces: A Guide to Self-Protection · Break with a Banshee · Gadding with Ghouls · Holidays with Hags · Travels with Trolls · Voyages with Vampires · Wanderings with Werewolves · Year with the Yeti · The Essential Defence Against the Dark Arts · Defensive Magical Theory · Dark Arts Defence: Basics for Beginners · Confronting the Faceless · Magical Drafts and Potions
Spells studied at Hogwarts under D.A.D.A.
Aqua Eructo Charm · Boggart-Banishing Spell · Counter-curses · Counter-jinxes · Counter-spells · Curse of the Bogies · Defensive Charms · Disarming Charm · Freezing Spell · Full Body-Bind Curse · Green Sparks · Hex-Breaker· Hex-deflection · Hex Zapper · Homorphus Charm · Impediment Jinx · Knockback Jinx · Knockback Jinx Duo · Melofors Jinx · Nonverbal spells · Orbis Jinx · Patronus Charm · Red Sparks · Reductor Curse · Revulsion Jinx · Seize and Pull Charm · Shield Charm · Smokescreen Spell · Stunning Spell · Tickling Charm · Tongue-Tying Curse · Ventus Jinx · Verdimillious Charm · Verdimillious Duo Spell · Verdimillious Tria · Wand-Lighting Charm · Wand-Lighting Charm Duo · Cruciatus Curse · Imperius Curse · Killing Curse
Creatures studied at Hogwarts under D.A.D.A.
Acromantula · Banshee · Boggart · Cornish Pixie · Dementor · Erkling · Ghost · Ghoul · Grindylow · Gytrash · Hag · Hinkypunk · Iguana · Imp · Inferius · Kappa · Lethifold · Nocturnal beasts · Red Cap · Troll · Vampire · Vampire bat · Werewolf · Yeti · Zombie