STAR Halo LED beacon strobe light. Patent pending technology, extremely low current draw, ultra high intensity LED light that exceeds the latest J845 and CA13 standards. The circuitry is designed with 24 customer selectable flash patterns, high/low intensity feature, and S-Link System that allows syncronizing capabilities with other STAR LED products. Circuitry is fully encapsulated for increased weather and shock resistance. Lightweight polycarbonate, universal flange base, 3 hole permanent mount, 1″ pipe mount, optional vacuum magnetic mount with cigarette plug adapter. Tall dome is 6 11/16″ tall x 6 13/32″ diameter. Voltage 12V – 24V DC. Amp draw is .6 amps @ 12V and .3 amps @ 24V. Lens color – Amber. Twist on/off lens. 5 year warranty. Sold by each.