The LDP-QCW 300-12 is PicoLAS' new high-speed driver for qcw-laser diodes. It has a compact design and an output current of up to 300A. The driver provides a peak output-power of up to 3600W. Its control and pulse generator allows additional use without an external pulse generator. The LDP-QCW 300-12 is suitable for a wide range of applications including illumination, pumping of solid-state lasers and spot welding.