A Wood lamp is a diagnostic tool to diagnose the condition of skin. Different skin conditions under ultraviolet rays of the Wood lamp appear in different colours. These new models have polishead glass magnifying lens 10 x 6 cm - 3 dioptres. 9W special compact fluorescent tube at approximately 360 nm wavelength. Operating voltage: 230 V - 50 Hz. Made in Spain. Arm length 40 x 40 cm.