Electronics - Activities An experience of more than 20 years in the development and manufacturing of electronic products, meeting the strictest specifications and standards of environment and safety, allows KST to propose a range of high quality products. Regarding the products for rolling stock, KST proposes three series :  CTL series composed of 22 types of lighting inverters       for fluorescent tubes.  KTL series composed of 4 types of lighting inverters       for fluorescent tubes.  CH series composed of 7 types of DC/DC converters       for halogen lamps. KST proposes a wide range of DC/DC converters ( CDC series ) such as :  DC/DC converters with insulation 48/48 VDC (insulation 4kV) 50W  DC/DC converters with insulation 24/24 VDC (insulation 4kV) 20W  DC/DC converters 150 VDC/6 VDC 40W KST also proposes a wide range of specific products such as :  Digital outputs interface cards (relay, opto-insulated,...)  Fast analog acquisition cards  Voltage regulation cards  Specific cards according to the customer's requirement...