The stand-alone FLASH 300 can be used for transient absorption, flash photolysis, fluorescence, pulsed-laser photoacoustics and many other laser-based experiments. The FLASH 300 has a temperature range of -40 °C to +105 °C. Vertical and horizontal adjustments can be used for tuning the position of the beam in the cuvettes. Each is provided with a set of optical slits. The FLASH 300 provides magnetic stirring and a dry gas purge system for work at low temperatures.