The Dark and Light Suits are two suit upgrades for Samus in Metroid Prime 2 Echoes. The Dark Suit reduces the damage that Samus takes in Dark Aether.
About this creation
Now the Light Suit is really cool. It makes Samus take no damage from the poison air in Dark Aether, no damage from poison water, warp between temples, and ride on beams of light. That's a mouthful, huh?