Abrams SAE Class-1 StarEye 4" Inch Dome 12 LED Magnet/Permanent Mount Emergency Vehicle Warning Strobe Beacon Light - White Certified SAE J845 Class 1 & SAE J578 for Amber, Blue, Red, & White. Meets California Title 13 Class B with Amber, Blue, & Red. 12, 3 watt 5th Generation LEDs with great heat sink management for long life span. Built in flasher with 30+ selectable flash combinations, sync-able between multiple units. Completely Waterproofed, Strong fog penetrability and dust-proof and corrosion resistant. Magnet and screws are included for both magnetic and permanent mounting.