The light controls are capable of switching up to 20 amps. The siren is LED backlit and is installed using heavy duty screw down terminals for power and a detachable connector for the speaker and lights. The amplifier and light controls are fused separately on the back of the unit. # Compact 100-watt electronic siren amplifier with 20 total amps of light control # Two illuminated rockers for light control # Siren Wail, Yelp, Phaser, Manual, Air Horn, and Mechanical tone with optional European HiLo/Two Tone siren tone # Rocker switch siren function control with momentary push-button override # DIP switch programmable tones # Two rocker switches control lights # DIP switch programmable # LED backlighting # Horn Ring Cycler (HRC2) for hands free siren tone control # Amplifier and light controls fused separately and externally # Short circuit, high voltage and reverse polarity protection systems # Sound output indicator light for diagnostics # Detachable wiring connector and screw down terminals for power # Mounting bracket # 2" H x 6" W x 6" D