The 90724 series are self-contained (no external power supply required) LED Anti-Collision Beacons. The solid-state circuitry and LED light source makes the "old style" mechanical oscillating beacons and the Whelen 90044 series quartz halogen flashing beacons obsolete. Benefits include no moving parts, no EMI/RFI, no inrush current spikes and crisp on-off cycles. Tech Specifications: Power Consumption: 0.45 amps at 28VDC LED Color: Aviation Red Weight: 1.8 pounds (816gm) Exposed Height: 2.70" (69mm) Lens Color: Clear glass