Transilluminators provide brilliant back illumination of transparent materials for analyzing. These devices provide a highly sensitive method for detecting double-stranded nucleic acids that have been labeled with fluorescent dyes such as ethidium bromide or acridine orange. With low energy consumption and an even distribution of light, transilluminators are ideal for viewing or photographing DNA or PAGE electrophoresis gels. Compact designs in many models allow for easy placement in workspaces of any size.