Joe has added a short video showing his laser equipped gun in action. Seeing is believing.
https://lasertoolsco.com/
https://youtu.be/gIviYYEOU2E
Maybe another video showing a brief tour around the gun would assist in people getting a handle on this new device.
The specifications (from Joe's web-site)
SPECIFICATIONS: Speargun Laser System with Remote Trigger
Model RT58DC: Red Beam Laser, Class IIIa (IEC 3R) < 5mW @635nm
Model GRT58DC: Green Beam Laser, Class IIIa (IEC3R) < 5mW @520nm (10X brighter)
Power: 1-DL123A Lithium Photo Battery (4-5 hours of continuous use).
Remote Switch Module: SPDT Momentary On, Center Off, Full On with power connector
Laser Module Includes: 12” power cord, connector and brass laser module
Depth Rating: Over 200 feet.
SPECIFICATIONS: Speargun Laser System with Single Module
Model SG58: Red Laser Beam, Class IIIa (IEC3R) <5mW @ 635nm
Model GSG58: Green Laser Beam, Class IIIa (IEC3R) <5mW @ 520nm (10X Brighter)
Power: 1-CR123A Panasonic Lithium Photo Battery (4-5 Hrs. Continuous Use)
Depth Rating: Over 200 feet
Now an idea of the weight would be useful and attachment details if say the device was to be removed and placed on another gun.