Strobe light accessories for use with items that have 12VDC terminal outputs. These strobe lights produce a bright flashing strobe that provides a nice visual alert that's great for loud areas or in areas where you don't want sound. Not only hear a chime but see it too! Many colors to choose from. When used in conjunction with the ERA-PRDCR-STROBE or the WDK-ERA-STROBE, when the receiver is triggered, the strobe flashes brightly to alert you to visitors, customers and guests arriving.