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 Delta – microprism louvre in UV stabil polystyrene. Miscellaneous Enclosure class IP 44 under suspended ceilings and IP 20 above suspended ceilings.