The Edwards 869 Adapta Beacon Series are low current, high decibel combination electronic horn/strobes for indoor use. The strobe and horn may be operated independently. They are engineered in a thermoplastic housing, and can be flush mounted. Available in Clear, Amber, Green, Red and Blue Lenses the 869STR has a strobe flash rate of 1 flash per second with a 1,000 hour strobe tube.