Installation Surface mounted or wire suspension. Installation via wire suspension requires wire brackets which provide flexible c/c, see accessories. Luminaires for wire suspension need a counterbalance (wire suspension and counter-balance, ordered separately). Connection Three Ø 19 mm cable entries fitted with blanking grommets on the top of the luminaire, see dimension chart. Knock-outs at each end for surface mounted mains cable. 3-way snap-in terminal block in the centre of the luminaire. Luminaires for dimming, 5-way snap-in terminal block, 1-phase through-wiring possible. Design Luminaire body in sheet steel and end-caps of die-cast aluminium in a white (RAL 9016) structured or alu-grey (RAL 9006) structured finish. Louvre Beta Opti – double parabolic reflector louvre with satin matt metallised aluminium side and cross-blades with an integrated opal film that minimises the risk of uncomfortable glare from the diodes. Reflector The louvre acts as a reflector.