The Xenon 360° beam of the ACR Firefly 2-Double flashes at one second intervals for at least 8 hours (2 hours continuous operation in incandescent mode).
Like the standard Firefly®3 model, the ACR Waterbug™ delivers 250,000 peak lumens in a 360° beam, offering maximum rescue visibility. Visible from beyond 1 nm (1.9 km).