A Luminoth laser emitter appears in the Gathering Hall of the Torvus Bog in Metroid Prime 2: Echoes. It projects a constant laser beam that is aimed at a wall. Contact with the laser is harmful to Samus. The device can be controlled with a Spinner. However, this Spinner is in a state of transdimensional flux, meaning that its atoms are split between Aether and Dark Aether. Samus is required to use the Spinner in the Dark Torvus Bog version of the room, the Crypt. Doing so moves the laser emitter in both Aethers and triggers the activation of platforms.
"Structural analysis complete.
Luminoth laser emitter is online. Device is aimed with a Spinner system."