A dermatologic treatment device having a light source emitting optical radiation beneficial to a dermatologic treatment, and a user interface selectively operating the device in at least one of a pulse mode and strobe mode. The light source emits a single optical radiation pulse in pulse mode to spot treat a portion of a skin surface during the dermatologic treatment, and the light source emits a continuous sequence of optical radiation pulses in strobe mode to treat multiple locations on the skin surface during the dermatologic treatment.