Altilum: Altilum is a highbay luminaire specifically designed to safely illuminate maintenance sheds within rail facilities. IP66 and rated to IK10 (20 joules of energy). Altilum incorporates specialist reflectors to efficiently direct light where it is required, whilst concealing the light source to minimise glare. Fitted with a housing deliberately designed to deter birds Die cast aluminium body with clear polycarbonate diffuser. Integral electronic control gear. Efficacies of >134 lm/W Suitable for ceiling mounting and finished in matt silver powder coat. Colour Temperature: 4000K CRI:>80 LED Lifetime L90B50>100,000h at 25oC ambient. Driver Lifetime up to 100,000h at 25oC ambient.