LBS-PELTIER is a sophysticated peltier temperature control system capable of thermostating a wide variety of Cell Holders from 0 C to 110C used in UV-Vis and Fluorescence analysis ( examples are cell holders 1×0;6×0;1×1;6×6 etc.). The system includes a touch screen display for the control of temperature ramps and stirring. The system requires a water circuit for the cooling of the peltier elements for temperature range outside 20C-45C. The LBS has an RS-232C interface for the comunication with the Spectrophotometer Software