This paper describes the results on a high repetition rate copper vapor laser using copper halide as active medium. An experimental investigation was made of the dependence of average output power on temperature, repetition rate and power supply. Optimum operation temperature and repetition rate were determined. The sealed-off laser tube operated for 65 hours at an average output power of 0.5 W. A maximum output of 2 W was obtained from a tube of 325 mm active length and 12 mm inner diameter.