xenon flashing light. Xenon flashing light is part of the original design inception, rather than a bolted on afterthought. As such, the light is more visible. Additionally, the light’s intensity is properly [...] combined visual/audible devices for industrial use. PATROL stands for Pfannenberg's Advanced Technology Range Of Loudness. It provides a range of sounder and combined visual/audible signaling devices for [...] 000,000 flashes. The superior technology behind Pfannenberg’s flashing lights permit an unrivalled life span of 8,000,000 flashes while retaining greater than 70 % light emission. 12 Worldwide certifications