Maxxima M42701Y 24 LED 4" Round Amber Warning Flasher Light 4" Round Strobe with 24 Amber LEDs, Grommet Mount Auto Select Dual Voltage 12/24 VDC 7 Selectable Flash Patterns, Class 1 Included - Capable of Alternate and Synchronized Flashing Use with Standard 3-Pin Connector 5 Year Maxxima Warranty Auto Select 12/24 VDC 7 Selectable Flash Patterns/1 Steady Alternate/Sync Provisions Class 1 Patterns Red/Amber Class 2 Patterns White/Blue Completely Resin Sealed Electronics Moisture &amp; Vibration Proof