Polyester powder coated die-cast aluminium housing. Fixing kit for posts Ø 60 - Ø 76 mm made of polyester powder-coated die-cast aluminium. Anti-ageing silicone gasket. Waterproof cable gland M25x1.5 for cables Ø 9- Ø 14 mm. External electrical connection with sealed plug-socket QUICK, complete with cable. Each LED is coupled with an electronic safety device (NUD) that can by-pass it in case of failure.