The Yo'Cha-class Photon Launcher is a formidable Klingon weapon.
Yo'Cha-class photon launchers are Klingon static defense weapon systems. They use a modified variant of the Pach'Yah class's turret housing and fires powerful self-powered photon rounds. The system requires a lot of power and so does it's supply system, thereby required effective power management to prevent sections of a colony from shutting down. (TOS video game: New Worlds)