Xenopus Electronix crime scene and forensic flashlights illuminate evidence through fluorescence. The company offers a single-wavelength model, and some of their products are enabled to change modes between blue and ultraviolet, or white and ultraviolet. Flashlights are available in several ultraviolet wavelengths from 365 to 400nm, as well as in 465nm blue and 520nm green. Rechargeable lanterns that feature high-flux LED emitters provide intense blue or UV for high-output power.