UV Transilluminator with Filter is supplied by BHAT BIO-TECH. UV-transilluminators are used in molecular biology labs to view DNA (or RNA) that has been separated by electrophoresis through an agarose gel. During or immediately after electrophoresis, the agarose gel is stained with a fluorescent dye which binds to nucleic acid. Exposing the stained gel to a UVB light source causes the DNA/dye to fluoresce and become visible. This technique is used wherever the researcher needs to be able to view their sample, for example sizing a PCR product, purifying DNA segment after a restriction enzyme digest, quantifying DNA or verifying RNA integrity after extraction. They have been designed to provide uniform and high intensity light sources to detect even nanogram quantity bands. Durable High Wattage lamps are housed in a a sturdy metal boxes. The UV Filters are polished to give blemish free viewing of the gel.