Its function is opposite to the Small Light which has the usage of shrinking things. Big Light, on the other hand, enlarges things. Similar to its counter part, once enough time has passed the user will return to their original height per the use of the gadget.
- The Devil Card
- A Visitor from the Country of the Future/U.S. English dub
- Gian is a Genius
- Nobita and the Wind Wizard
- The Rumored Nobita
- The Nobi Family's Giant Tunafish
- Giant Suneo Appears!
- Shizuka-chan in My Pocket
- Nobita's Secret Gadget Museum ~museum Adventure~
- Nobita's Great Adventure into the Underworld
- In early manga, it has the same design with the Small Light.
- The original height the user returns to appear to exclude the alteration made by the original gadget, as Nobita was able to return to his original height prior to the use of Devil Card.