The Fortune PL-300GJ battery-powered Ultra Bright LED beacon contains 20 LEDs, is green in color, and can be used as a party decoration or in an industrial setting to increase visibility, attract attention, or signal an alert. The 20 LEDs are arranged to simulate the rotation of a police beacon. The rotation speed can be adjusted to suit the application. Magnets on the bottom allow the beacon to be attached to a vehicle or a metal surface. The beacon's dome screws down against an O-ring gasket to resist water. The beacon can run continuously for up to 40 hours on four AA batteries (sold separately). A 4.5V DC jack allows the beacon to be used with a Fortune Products ADAP-LLAS1000 variable power adapter, a Fortune Products BPP-331 battery power pack, or a Fortune Products BPP-3201-4 battery power pack (each sold separately). The beacon measures 5" high and 5" in diameter.Fortune Products manufactures battery-operated lighting products for special events, seasonal decor, and interior design. The company, founded in 1985, is headquartered in Lake Stevens, WA.