Tomar Electronics model 4000X series is a Hazardous Location Strobe warning light engineered to perform in the harshest environments. Constructed of 30% glass-filled thermoset polyester it is particularly well-suited for installations in corrosive, wet NEMA 4X harsh environments, and hazardous locations. This high strength FRP material is resistant to the corrosive effects of most chemicals, hydrocarbons and solvents.