https://content.coherent.com/legacy-ass ... 0517_3.pdf
These lasers require a trickle of tap water for cooling or a small chiller (not included) like an OASIS 150. A slow flow of tap water is fine. The laser will include a new DC power supply, software and manual copies. Sam has wired an analog input to change laser power with a DC voltage input of 0 to 5 Volts so a PC isn't really required. All the lasers are running around 11A for a watt on a 15A current limit-good diode condition. $4,500 with free shipping to the USA. 30 day exchange or money back warranty. Can also be set up and tested at say 500 mW if that is a better power level and the laser would last longer.

We have many lasers.....just ask! Phil and Sam (Sam's Laser FAQ)