preheat hollow cathode lamp 1. work with AAS in labs 2. full elements in warehouse, quick delivery 3. 36 years production ... could be put aside for long time.Applications: 1. KY-2 series HCL: suitable to be used with various brands absorption atomic ... , Shimadzu, USA Varian, Thermo Electron, Germany Analytik Jena etc. 2. KY-PE series HCL: suitable to be used with USA Perkin Elmer ...