FluoroBox Gel doc system (Nucleic aicd Bioimaging Instrument) EtBr and UV have been used in laboratories for techniques such as agarose gel electrophoresis. However, it has been shown that EtBr is toxic and potential mutagen. Also, UV can damage DNA sample and UV radiation is harmful. FluoroBox is optimized for excitation of alternative reagent to EtBr with 470nm Blue LED replacing UV light. Its compact size helps make better use of a space in the laboratory. Also, the program has been designed considerably simple for ease of use.