BTT Cove Light Luminaire Housing High quality cold-rolled steel housing of thickness 0.6 (T6) or 0.8mm (T8) Lamp Holder Heavy duty rotary-locked type type lamp holder (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 Suitable for cove lighting