40mm Tower ROGBC Base Mount. range of product: Harmony XVC4 – product or component type: complete pre-wired monolithic tower light – beacon or indicator bank unit type: 5 illuminated units – sound signalling: without – component name: XVC – device short name: XVC – light source: blue LED steady, clear LED steady, green LED steady, orange LED steady, red LED steady – supply circuit type: AC/DC.