Blazing flames wreathe your body to create wings, which shed a bright light in a 10-foot radius and dim light for an additional 10 feet. You can end the spell early by using a bonus action to dismiss it.

The fiery wings give you resistance to cold, and immunity to fire. On top of these effects, you can choose to either gain +2 to AC and lose 10 feet of walking speed by letting the wings cover your body, or to instead gain a 25 feet flying speed by expanding them outward. 

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, it no longer requires you to maintain your concentration.