A Green Lantern's light shines through the "Blackest Night" and illuminates the "Brightest Day."

The Green Lanterns wield invulnerable rings that draw upon the collected willpower of all sentient beings. 

This green-colored energy is shaped into hard-light constructs determined by the wearer's whims. If a "GL" wants to form a giant green lawnmower and scalp a supervillain's mohawk, he or she can do so with the slightest application of thought.

Our Green Lantern Corps Symbol Button features the universally renowned symbol of the outer space police division granted rings by the Guardians the Universe. 

Yes, this Green Lantern button is rendered in a solid green with an illustrated, reflective sheen. Because it's pulsing, solid willpower made manifest. Duh.