The flagship model Regula 1031 has an extended kit of light sources: white (incident, oblique, and coaxial, for OVD visualization), ultraviolet (254, 310, 365, 400 nm), infrared 850 nm, high-intensity infrared 980 nm and others. Features a torchlight mode with white light for see-through document checks and ultraviolet 365 nm light for quick review of an entire document page at a glance. In total there are 19 lighting modes.