The TWR lighting division of o2wireless Solutions offers a full range of ETL-certified and FAA-approved obstruction lighting systems for any height or voltage requirement. Whether you need replacement lamps or parts, or need a complete lighting system design, BSW can plug you into the TWR resources you need.The OLB116 is a 116 watt/120 volt incandescent obstruction lamp, does not include fixture.Call us with your complete lighting needs.