Bastion: Bastion vandal resistant luminaire is a slim, strong bulkhead for both interior and exterior applications. IP65 and rated to IK16 (150 joules of energy) ensuring a high level of impact resistance. Zinc coated steel body with opal polycarbonate diffuser held against gasket by tamperproof screws. Electronic control gear on removable tray for ease of repair/upgrade with fused plug and socket connector block. Efficacies of 89 lm/W. Designed for use within subways, underpasses and tough urban environments. Suitable for wall or ceiling mounting and finished in black polyester powder coat. Colour Temperature:4000K CRI:>80 LED Lifetime L80B10>72,000h at 25oC ambient. Driver Lifetime up to 100,000h at 25oC ambient.