- Over 57 000 hours (6.5 years) of continuous use will maintain a minimum of 70% light output - Four programmable flash patterns: - Single Flash - Double Flash - Quad flash - Flicker Flash - 6 programmable beacon and strobe brightness settings - Immune to shock and vibration - Low current draw - Shatter resistant polycarbonate lens - SL-2-EWP is designed to meet IP66 ingress Protection Rating (see DOD# 859 for more information)