LED Stacking Beacon Dimensions ? x H: 37.5 x 127.5 mm Dimensions ? x H + basket: 37.5 x 127.5 + N/A Frequency: 2.9 kHz Operating temperature: -20...+50 °C Volume: 85...85 dB Series: Kompakt 37 Bulb: LED Cap: Polycarbonate Case colour: Black Colour: Red / Yellow Housing: Polycarbonate Protection rating: IP65 Series: Kompakt 37 Service life: 50000 h Termination: Cable Type of signal: Continuous Current: 100 mA Operating voltage: 24 VDC Power: 2.4 W