1) Artifical tan source 2) Artificial tan producer 3) Artificial tan-producer 4) Artificial tanner 5) Artificial tanning device 6) Beach substitute 7) Browner inside 8) Home source of tan 9) Indoor ray deliverer 10) Light that makes you dark 11) Mercury-vapor lamp 12) Sun ray lamp 13) Tanning booth fixture 
electric discharge lamp (q.v.) that emits radiation of wavelengths present in sunlight, particularly the short wavelengths of the ultraviolet region.
[n] - a mercury-vapor lamp used in artificial sunray treatments
sun lamp noun a mercury-vapor lamp used in medical or cosmetic treatments
a lamp that generates ultraviolet rays, used as a therapeutic device, for obtaining an artificial suntan, etc. · a lamp used in motion-picture photography, having parabolic mirrors arranged to direct and concentrate the light.