Installation Recessed mounting in ventilated or unventilated suspended ceilings. Two optional designs. VTB – for suspended ceilings with visible T-bars 15 or 24 mm. HB – for suspended ceiling with concealed T-bars/D-edge, symmetrical attachment of ceiling boards. Connection Connection in separate ballast box. The driver box can be positioned next to the luminaire. Snap-in terminal block 3x1,5mm2 (x2), through-wiring possible. 5x1,5mm2 (x2) when dimming. Can also be supplied with earthed mains cable and plug. Design Luminaire body of white enamelled sheet steel (RAL 9016). Louvre Opal plate in frosted UV stabil polystyrene. Miscellaneous Enclosure class IP 44 under suspended ceilings and IP 20 above suspended ceilings.