About OL4 Hazard Marker
OL4 Hazard Marker
The OL4 is a light-weight, high-performance engineered to work reliably around the year in all types of weather. Designed for tough industrial locations such as mines and constructions zones, the OL4 is ideal for marking tall buildings, ground-hazards, barricades and other construction hazards on site. For detailed specifications, visit
Brochures | 3-Part CSI specifications
News archive:
OL4 Solar Warning Lights (Jan 14, 2016)
Obstruction Lighting Solutions (Apr 23, 2015)
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01690 - Electrical
16500 - Lighting
26 - Electrical
26 50 00 - Lighting
34 40 00 - Transportation Signaling and Control Equipment
40 90 00 - Instrumentation and Control for Process Systems