Chris takes apart a Whelen L21 and shows us High vs Low Dome
2,846 views · Published 21 July 2014 · 10:46 · Indexed 17 October 2026
Channel: SIRENNET · 2014 · Autos & Vehicles
http://www.sirennet.com/whl21--p.html The Whelen L21 Series Super-LED 360° Beacons are Certified SAE Class 1. Utilizing Whelen's New Broadband Energy Radiator Technology, these solid-state beacons resemble traditional strobe beacons, but with greater light output and lower amp draw. Best of all the Super-LED light source has a rated life that exceeds that of comparable strobe tubes by more than 50:1. Size is 6 3/8" wide and 5" high for low domes, 6 1/2" for high domes. Features: SmartLED beacon design offers 75 SignalAlert flashes per minute standard. 21 Total Scan-Lock alternating and simultaneous flash patterns built-in. Synchronize with up to 7 more L21 beacons. Supplied with 6" pigtail. Choice of high or low polycarbonate dome. Black polycarbonate base. Virtually no EMI radiation. High/Low mode. Certified SAE Class J845 Class 1 360° (Amber). 50,000 hour rated life. Voltage: 12 VDC Current: 1.5 Amps (peak), 0.6 Amps (average). Combination mounting (pipe/permanent/J-hook). Optional Brush Guards are available for Low Domes and High Domes. Whelen 5 Year Warranty MADE IN THE USA The use of a magnetic mounted light on the roof of a vehicle in motion is not recommended, and is at the sole discretion and risk of the user. Use of a magnetic mount on vehicle in motion will violate warranty.
