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residential lantern
Product No. 51/82210

The Residential is an enclosed side entry lantern for use with 2-40W 2 ft, MCF instant start tubular fluorescent lamps.


Application
Group B Roads, Shopping Areas, Housing Estates, Industrial Roadways.


Specification
The unit comprises a cast aluminium canopy with perspex enclosing bowl and conforms to the requirements of BS 1788 for streetlighting lanterns.

The canopy is a single piece silicon aluminium alloy casting which includes suitable instant start auxiliary control gear ready wired and fixed to a sheet steel stove enamel white gear tray/reflector which is removable for easy access.

Refractor plates are sealed to the inside of the one piece perspex enclosing bowl. The bowl seats evenly on a hollow section Neoprene gasket located within the canopy. Easy compression of the gasket ensures a weatherproof seal between the enclosing bowl and the canopy. The unit includes a terminal block, earth terminal and cable clamp located adjacent to the bracket entry.

Bi-pin lampholders are mounted within cast aluminium support assemblies.

Bracket entry is for 1&fract14" BSP plain.

Auxiliary control gear comprising choke, transformer and capacitor is suitable for 230/240V 50 cycles a.c. mains supply.


Light Control
Light distribution is controlled by the gear tray/reflector in conjunction with refractor plates sealed to the inside of the enclosing bowl.


Mounting
Side entry for 1¼" BSP plain.


Weight
Including auxiliary gear 20 lbs.







Light Output Lamp (MCFA/U) watts
Lumens Rating
2 x 40W 2 ft
2 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 in lower hemisphere
Percentage of lantern output in upper atmosphere
Direction Intensity Ratio (B.S. - CP 1004)
2174
1826
348
72%
84%
16%
1.76
Conversion Factors. Diagrams are drawn for average conditions of MCFA/U 40W lamps. For other conditions multiply by conversion factor.
Initial condition of lamp - clean lantern 1.24
Average condition of lamp - clean lantern 1.10

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.




Polar distribution through Main Beam
Horizontal distribution through peak at 69 degrees
The company reserve the right without notice to change the design or the specification of equipment included in this publication and supplied by them.