- BLK-4-EWPs control module and strobe light come with Enhanced Weather Protection (EWP), EWP products are designed to meet IP66 Ingress Protection Rating, see DOD# 859- Durable polycarbonate lens- High output long life LED technology- Four programmable flash patterns: - Single Flash - Double Flash - Quad Flash - Flicker Flash- 6 programmable beacon and strobe brightness settings- Immune to shock and vibration- Flush mount or surface mount with weatherproof single gang box (included)- 3/4 knockouts for conn