Visual Effects PL1B 7-Inch Police Beacon, Blue 20-Watt bulb ETL & cETL approved blue PL-1 Police Beacon Add surprise and excitement to any event with this bright attention-getter. Available in your choice of red with spare blue dome included, or yellow with green dome included.^Replacement domes also available. Great for entertainment, safety, and emergency applications. This 7" fixture includes 20-watt bulb.^ETL and CETL approved.