Zelos Wall Max: Bulkhead fitting for high perimeter wall applications. IP66 and rated to IK16 (150 joules of energy) ensuring a high level of impact resistance. Die cast aluminium body finished in titanium polyester powder coat. Frosted or opal polycarbonate diffuser held against gasket by tamperproof screws. Removable electronic LED gear tray with fused terminal block provides ease of repair/upgrade. Tested to operate in ambient temperatures of up to 40°C. Efficacies of >90 lm/W (opal), efficacies of >79 lm/W (frosted) and efficacies of >74 lm/W (extra wide optic with clear diffuser). Colour Temperature:4000K CRI:>80 LED Lifetime L70B10>100,000h, L70B10>54,100h (Frosted, Extra Wide 3000K) at 25oC ambient. Driver Lifetime up to 100,000h at 25oC ambient.