Borg 5141GR is a post-top luminaire shaped as a flat disc 51.2 cm in diameter and 15.4 cm high. The body is cast aluminium powder-coated in graphite RAL 7016, and a satin diffuser of UV-stabilised polycarbonate closes the disc from below, sealed with silicone.
What is in the box and how it is mounted
The luminaire comes without a pole and slides onto a 60 mm pole spigot to a depth of 95 mm. Norlys sells the reducer 3070XX0009 and the mounting adapter 154XX0010 separately. A 6 m H05RN-F 6G1 cable leaves the luminaire and is connected in a suitably chosen junction box.
The luminaire weighs 4.92 kg and its side area is 0.042 m². Compare both with the chosen pole's load capacity and wind load.
What light it gives
The LED module draws 27.2 W and produces 4180 lm, and the complete luminaire delivers 3735 lm at 32 W, which is 116.7 lm/W. The satin diffuser makes the disc glow evenly, without glaring points. 3000 K is warm white with a slightly yellowish tone. CRI 80 is standard for outdoor lighting, and SDCM3 keeps one tint along a row.
All light goes downwards (ULOR 0 %). The manufacturer gives photometric data for a 4 m mounting height. The light source has energy efficiency class D.
Control and installation
The driver works with DALI2 and NightDim (4DIM) and is factory-set to maximum current: the luminaire can be dimmed from a DALI installation and turned down at night following a programmed profile.
As a class I luminaire it needs a protective earth. At switch-on it draws an inrush current of 26 A for 180 µs, so up to 18 of these luminaires can run on one B10A circuit breaker and up to 28 on B16A. The power factor is 0.98.
Durability and service
IP65 means dust-tight and protected against water jets, and IK08 means resistance to 5 J impacts, with 6/10 kV surge protection. The luminaire works from −20 to +45 °C. The LED module keeps 90 % of its flux for more than 54 000 hours (L90) and the driver has a lifetime of 100 000 hours; both are replaced by a professional service, and the manufacturer offers the repair kit ZS5141zx0010. The flat, smooth form suits modern and minimalist architecture – by a driveway or on a terrace.
