X-Cite® is a product family of illumination systems designed especially for fluorescence microscopy. With a wide selection of features and accessories, X-Cite® systems are used in labs worldwide for applications ranging from routine fluorescence assays to advanced live cell and quantitative imaging.

Most experiments need to be repeated at least 3 times for data accuracy and statistical significance. Whether you are using a lamp system, LED or laser source, measuring the illumination power is a critical step in ensuring consistent conditions, and thus accuracy, for each experiment. This is best achieved by measuring the power emitted from the objective - where your sample resides.

Multi-user facility operators may also use the X-Cite® Optical Power Measurement System to set-up and calibrate illumination sources to monitor their lifespans, and also to diagnose optical alignment issues of their lamps, LEDs or lasers. With a PC interface and "Power Snapshot" tool, data can be easily stored electronically for complete experiment records.

Below are references to articles that warrant the use of Power Measurement systems for microscopy. PubMed ID (PMID) are also listed.

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Bernas T, Barnes D, Asem EK, Robinson JP, Rajwa B. Precision of light intensity measurement in biological optical microscopy. J Microsc. 2007 May;226(Pt 2):163-74.

PMID: 17444945

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Pawley J., The 39 steps: a cautionary tale of quantitative 3-D fluorescence microscopy. Biotechniques. 2000 May;28(5):884-6, 888.

PMID: 10818693