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post top lanterns fluorescent




These post top lanterns are particularly suitable for town centres, shopping areas, boulevards, works entrances and similar situations where appearance and colour of light are important.




Specification
The lantern consists of base casting and cover made from LM-6-M silicon aluminium alloy, joined by a tubular steel spine. Lamp control is mounted on the spine ready wired to terminal blocks.

The diffuser is an opal 'Perspex' cylinder held in position by a spun aluminium top cover retained by a cast knunckled knob. The spigot cap is 3" (7.6 cm) diameter x 3" (7.6 cm). Weight of instant start start lantern with gearl two lamps 30 lb (13.6 kg) 4 lamp 38 lb (17.2 kg). Switch start lanterns are 2lb lighter.




Product Numbers

Product No. Lamps Voltage
53/462002 x 40W 2ft. SS200/250v
53/462012 x 40W 2ft. IS200/250v
53/462024 x 40W 2ft. SS200/250v
51/462034 x 40W 2ft. SS200/250v

Prefix Is - instant start. SS - switch start


Post Top Lanterns in the shopping
centre of Crawley New Town










Light Output (Lamp MCF/U watts)
Lumen Rating
4 x 40W
4 x 1510
Total light output of lantern - lumens
Light output in lower hemisphere - lumens
Light output in upper hemisphere - lumens
Total light output ratio
Percentage of lantern output in lower hemisphere
Percentage of lantern output in upper atmosphere
Lumens per 100 linear feet at 90 ft. spacing
3330
1665
1665
50%
50%
50%
-
Conversion Factors. Diagrams are drawn for the old average ratings of the MCF/U lamps. To convert to the present average rating shown in the table and for other conditions multiply by conversion factor.
Initial lamp output - clean lantern 1.24 1.38
Average lamp output - clean lantern 1.11 1.12

Light Distribtion data are only given for the guidance of the Lighting Engineer and represent the results of laboratory tests on a typical lantern taken from stock. The data are based on the lamp characteristics stated; if the latest lamp efficiency is different, the candela or lumen values should be calculated in direct propotion to the relative lamp lumens.




Mean Polar Curves in a Vertical Plane




The company reserve the right to change without notice
the design or the specification of equipment included in
this publication and supplied by them.