A Green Lantern's ring, considered by some to be one of the most powerful weapons in the known universe, has the ability to affect and use fundamental forces of the known universe, including electromagnetic energies such as gravity, radiation, heat, light, and powerful blasts of concussive force.

Can Green Lantern Fly superhero?

Flight: By the manipulation of anti-gravitons and directed molecular movement, the ring allows the user to fly at incredible speeds. In atmosphere, a Green Lantern has been known to fly as fast as Mach 10 in atmosphere by creating an aerodynamic envelope around his body.

Does Green Lantern have powers without the ring?

Amusingly enough, less than two years later, Gardner Fox was at it again in Green Lantern #43, where Hal Jordan and Barry Allen trade superpowers for an issue, so Hal's super-powerful without his ring from the waist down in a whole other comic book story!