Pendant luminaire Design: Single luminaire designed for pendant mounting with low-profile luminaire housing. Housing with seamless underside, in edged steel, white (similar to RAL9016) or silver (-SI, similar to RAL9006), powder coated. Top of housing with fixing points spaced (35 mm) for variable wire pendant luminaire mounting. For RIDI-TUBE lamps (order separately). Lampholder system: RIDI-TUBE lamp base system with electrical and mechanical interface, proof against polarity reversal. Twist-clip mechanism for toolless lamp change corresponding to conventional fluorescent lamps. Mechanical and electrical fixture on the longitudinal sides inside the base. Electronic DALI converter for LED, 230 Volt, 0/50-60 Hz and internal connector block. Suitable for direct voltage operation and use in central battery systems. Mounting: The luminaires are suitable for ceiling pendant mounting using wire pendants or with accessories for direct ceiling mounting. Wire pendant mounting F-LINE 1.. with ZSPT2Z 190, F-LINE 2.. with ZSPT2Z 295. To configure F-LINE constructs, straight, L, T and X shaped connectors are available. F-LINE-R ... O Opal profile cover made of UV-stabilised PMMA with satinised surface. For RIDI-TUBE lamp, recommended cover: clear.