Terminus Surface: Terminus Surface is a cylindrical weather and vandal resistant downlighter. Fully sealed robust downlighter for use in transport, community and public applications. IP65 and rated to IK11 (50 joules of energy). Die cast aluminium body with clear polycarbonate diffuser. Integral electronic control gear with fused terminal block. Efficacies of >112 lm/W. Suitablefor ceiling mounting and finished in titanium polyester powder coat. Colour Temperature:4000K CRI:>80 LED Lifetime L80B10>55,000h at 25oC ambient. Driver Lifetime up to 100,000h at 25oC ambient.