From the Depths Wiki
Multipurpose Laser
Health 100
Armour Class 4
Structural No
Weight 20
Relative Buoyancy +17.9
Size 1x1x1
Material Cost 50

The multipurpose laser is the core of any laser. Laser Couplers connect to it and through the use of cavities provide it with power that can then be transferred to Laser Connectors through Laser Transceivers to locations throughout your design and power up laser turrets and laser anti munitions systems.

By looking at it in the build mode you can see the statistics of the laser, including range, damage in forms of pulsed laser (more powerful bursts of laser but slower) or constant laser beam.