The SPL-600 produces a highly effective 600W (180jcm2/second of energy density at 410-800nm) with a pulse duration of 0.1 seconds. Pulse frequency is user-adjustable from 1-7 emissions per second and, unlike the SPL-Economy unit, there are three settings for treatment length (0.5, 1.0, and 1.5 seconds).
Because of the adjustable treatment length it has the ability to treat much more aggressively than the SPL-300 Economy unit. This means the technician can effectively administer treatment to deeply rooted hairs as well as hair which may be lacking in pigment. The SPL-600 is also capable of performing tattoo removal on dark inks.