Whelen L51 Series Beacons Super-LED Color:Blue Uses the primary siren speaker

Uses the primary siren speaker output wires and divides the frequency to one of three frequency bands via Scan-Lock �� buttons Selections are � tone

includes rubber gasket

Will work with CarBide

Steady-burn White for alley/flood lighting plus White ground illumination

Whelen L51 Series Beacons Super-LED Color:Blue Uses the primary siren speakerThis completely waterproof, strong fog penetrability and dustproof, corrosion resistant L50 series from " Whelen Engineering" is durable and suitable for numerous applications. This polycarbonate black base & twist off domes with full reverse polarity protection. Features SAE Class 1 Certified L51 Series SAE Class 3 Certified L53 Series (Amber) 100% solid state and conformal coated electronics Hard coated domes minimize environmental damage from sand,