One New Aftermarket Ecco Beacon Tech Info: -Arrowhead: 6550A; Ecco: 6550A, 6550A-VM; Grote: 77123; Peterson Lighting: 769-1, 769-2, 789A; Preco Alarms & Strobes: 4243A; Star Headlight & Lantern: 255TS-A; Truck-Lite: 6600A, 92530Y, 92534Y, 92573Y -: Rugged Polycarbonate Base@ Reverse Polarity, Voltage Spike & Surge Protected, AMPS: 1.500, CERTIFICATIONS: SAE J1318, CE, COLOR: Amber, FPM: Double, FPM 2: Quad, FPM RATE: 80, FPM RATE 2: 65, HEIGHT: 121.900mm, HEIGHT: 4.799", INTENSITY: Unadjustable, JOULES: 7, JOULES 2: 10, LENGTH: 165.100 mm, LENGTH: 6.500", LIGHT PROFILE: Low, LIGHTING: Strobe, MOUNTING: Flange and 1 Inch Pipe, REPLACEABLE LIGHT SOURCE: TRUE, SAE LIGHT CLASS: 2, STROBE POWER LOCATION: Internal, STROBE TRIGGER LOCATION: Internal, VOLTAGE INPUT HIGH: 48, VOLTAGE INPUT LOW: 12, WIDTH: 165.100mm, WIDTH: 6.500" Replaces Part Number(s): ECC-6550A