Sound Active & Master/Slave. Sound active from built-in programs. Strobe function. 0 - 100% Dimming. Very low power consumption (Power Draw: 18W). Extreme long lifetime of the LEDs (100,000 hr. rating). Includes hanging bracket. 1/4" input for optional remote control (sold separately). Power Link Output - link power from another Revo II or Revo III. Circuit Breaker Protection - no need to change fuses.