range of product: Harmony XVB Universal product or component type: indicator bank beacon or indicator bank unit type: illuminated unit signalling type: flashing mounting diameter: 70 mm component name: XVBC material: polycarbonate light source: yellow bulb not included bulb type: protected LED,incandescent with BA 15d base,incandescent [Us] rated supply voltage: 24 V AC,24...48 V DC