Power and flexibility for routine analyses at an affordable price. The PerkinElmer LS 45 Fluorescence spectrometer offers versatility, reliability and ease-of-use for routine analyses in an affordable package. The LS 45 spectrometer has been developed in conjunction with a host of accessories and software to address a wide range of applications. Whether your application requires fluorescence, phosphorescence, chemi – or bioluminescence, the LS 45 Fluorescence spectrometer is ready for the challenge.