INSTALLATION AND MAINTENANCE INSTRUCTIONS Selectable Output Series Speaker/Strobes for Protective Signaling Systems Speaker 12 DC/FWR and 8-17.5 10 candelas are selectable output levels are established at Underwriters models SP2R1224MC, SP2W1224MC and SP2R1224MCP incorporate a new patent-pending voltage booster design that has a more consistent flash bulb over the range of candela selections. The benefit to the customer is a high quality strobe device. Description the requirements of most agencies governing these including: NFPA, ADA, The National Fire Alarm Having Jurisdiction for other codes or standards that amplifiers having an output voltage of either power supplies. The strobes can also be installed Supply Considerations For Strobes typically supply DC filtered voltage or FWR (full- Sizes