L-Series, red, wall-mountable, clear lens, speaker strobe marked "FIRE". Selectable strobe settings: 15, 30, 75, 95, 110, 135, and 185 cd.Main FeaturesPlug-in design and protective cover reduce ground faultsUniversal mounting plate with an onboard shorting spring tests wiring continuity before installationNo extension ring requiredField selectable candela settings on ceiling units: 15, 30, 75, 95, 115, 150, and 177Automatic selection of 12- or 24-volt operation at 15 and 30 candelaRotary switch simplifies field selection of speaker voltage (25 and 70.7 Vrms) and power settings (?, ?, 1 and 2 watts)Speakers offer high fidelity and high volume sound output520 Hz +/- 10% square wave tone capable with compatible FACPCompatible with System Sensor synchronization protocolElectrical compatibility with existing SpectrAlert and SpectrAlert Advance productsGeneral InformationName: System Sensor SPSRL L-Series Indoor Speaker Strobe, Wall Mount, "FIRE" Marking, Red, Honeywell International, Inc, System SensorCategory: System Sensor, Fire, Fire Notification Appliances, Speaker StrobesUPC Code: 783863048326Country of Origin: Mexico. Country of origin is subject to change.