BLUE LED BA15D 24VAC/DC. range compatibility: Harmony XVB, Harmony XVD, Harmony XVP – accessory / separate part designation: protected LED bulb – accessory / separate part type: LED bulb – accessory / separate part category: lighting accessories – accessory / separate part destination: beacon and indicator bank – current consumption: 47 mA – signalling type: steady – signalling colour: blue.