INNGU GXS series IR subnanosecond laser has solved the issue of thermal effect well by the way of water cooling for heat dissipation, ensuring the stability and lifetime of laser. This kind of laser can adapt to complex environments of high temperature and high humidity for photovoltaic glass drilling. After test, it is found that GXS series IR subnanosecond laser can keep running and working normally and stably under the ambient temperature from minus 5℃ to 45℃. It is mainly used in laser processing fields like semiconductor and photovoltaic industries, especially for glass drilling and has greatly improved processing efficiency.