Hammerfest 5136GR is a NORLYS post-top lantern head – the luminaire alone, without a pole – shaped as a flat disc 55 cm across, held up by three slender arms. The body is powder-coated cast aluminium in graphite RAL 7016, and the underside of the disc is closed by an opal PMMA diffuser. The whole head is 76 cm tall.
Mounting and what to buy separately
The head slips onto a lighting pole with a 60 mm spigot, to a depth of 95 mm. No pole is included, and the manufacturer lists mounting adapter 154XX0010 as an accessory sold separately. The luminaire has 6 m of H05RN-F 6G1 cable, which is connected inside the pole in a suitably chosen junction box. The head weighs 9.18 kg and the carton measures 80 × 62 × 62 cm.
This is a protection class I luminaire, so it needs a protective earth. The manufacturer also states an inrush current of 26 A for 180 µs: up to 18 of these luminaires can run on one B 10 A circuit breaker and up to 28 on a B 16 A.
How much light, and what kind
The LED module produces 5200 lm, and 3670 lm leaves the luminaire at 32 W, i.e. 114.7 lm/W. The manufacturer's photometry is calculated for a 4 m mounting height – a reference point when choosing the pole. The light is directed downwards, the opal diffuser spreads it and limits glare, and 2% of the flux goes upwards (ULOR). At 3000 K the light is warm white, with a colour rendering index of Ra 80.
The driver works on DALI2 with NightDim and leaves the factory set to maximum current. Dimming needs a DALI controller – an ordinary dimmer will not work, and other settings are programmed by agreement with the manufacturer.
Durability and service
The IP65 rating lets the head work outdoors without a canopy at −20 to +45 °C, and the driver's surge withstand is 6/10 kV. The LED module and driver are replaced by a professional service; the manufacturer lists spare parts and repair kit ZS5136zx0010 for them. The module's L80 lifetime is 102,000 h and the driver's 100,000 h – at 12 hours of light a day that is over 20 years of operation. The head is intended for parks, gardens and the grounds of hotels and restaurants.
