Whelen L10 Series Economy Permanent LED Beacons - Amber 4 Intensely Bright Amber Super-LEDs. 12VDC. SignalAlert 75 default flash pattern. Eighteen total flash patterns including steady-burn. Meets SAE J845, Class 1. 6 Inch High Dome. Permanent mount. Polycarbonate base. Whelen 5 Year HDP Heavy-Duty Professional Warranty