T&F1 418 WR T8 Recessed Double Parabolic Lover Luminaire 4x18w Housing High quality cold-rolled steel sheet. Reflector 99.85% high purity anodized aluminium reflector mirror finished (DIN 5036-2) for normal usage. Louver 99.85% high purity anodized aluminium louver with Total Reflectance of 87% mirror finished (DIN 5036-2) for longitudinal with aluminium profile to anti-glare. Standard 5 blades for 18w and 10 blades for 36w with spring-lock type for ease of maintenance. Lamp Holder Heavy duty rotary-locked type (TIS.344-1987 Standard) Wire Cable THW 1.0 sq.mm. 70'C (TIS.11-1988 Standard). Optional: 105'C 18AWG UL Standard. IP Rating IP20 Installation For recessed T-bar and gypsum ceiling installation. Application Recommended for commercial buildings, shops, hospitals, department stores , schools, etc.