IT 228 WR T5 Industrial Type Luminaire 2x28w Housing High quality cold-rolled steel Reflector Powderpainted sheel sheet reflector. Optional : 99.85% high purity anodized aluminium reflector Lamp Holder Heavy duty rotary-locked type (G5) lamp holder (TIS.344-1987 Standard) other lamp holder typs are available Waterproof type lamp holder = WP Wire Cable THW 1.0 sq.mm. 70'C (TIS.11-1988 Standard) IP Rating IP20 Installation suitable for general purpose with high efficiency requirement