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Beta Six on 1501 steel column
atlas beta six
fluorescent lantern

This lantern designed for Group 'B' lighting where the good colour of fluorescent lighting is desirable. Easily installed, its weatherproof construction and the long life of Altas fluorescent tubes, means long maintenance free periods and first class performance. It incorporates all control gear and is therefore the ideal lantern for conversion schemes.



Specification

Special Features. A robust cast aluminium canopy is used on this fitting to which is fixed the diffused plastic bowl using toggle catches at each end, one of which acts as a hinge. The fittign is ealed against the atmosphere by an expanded Neoprene gasket cemented between the canopy and the bowl. The control gear is mounted onto a separate tray which can be hinged and removed for servicing.



Optical system. Symmetric distribution using 2-2ft 40 watt fluorescent tubes providing glare free lighting from diffused or refractor bowl.



Materials. The canopy is made from silicon aluminium and the diffused bowl from plastic sheet, external parts are stainless steel. The control gear tray is mild steel and finished white stove enamel. All internal brackets are natural Duralumin.



Installation. The spigot entry is 1¼" BSP x 5" unthreaded barrel secured to column bracket by allen type screws. A reducer can be supplied to adapt the lantern for use on 1" BSP brackets.



Lamps. Two Atlas White 2ft. 40 watt tubes.



Catalogue Number

PYM.Q2240.T        Diffuse plastic bowl
PYX.Q2240.TRefractor bowl
PYR.221¼" - 1" BSP Spigot Reducer




Technical Data

ATLAS Lamps:2x2ft. 40 watts White
Average light output throughout life:3040 lumens
Light Output Ratio:0.78
Light Output Ratio above horizontal:0.19
Light Output Ratio below horizontal:0.59
Light Output below horizontal:1794 lumens
Light output per 100 linear feet of footway at:    
    80 ft. spacing2240 lumens
    100 ft. spacing1794 lumens
    120 ft. spacing1494 lumens
Directional Intensity Ratio:1.6
Overall Length:30 3/16ins. 76.5cms.
Overall Width:5 5/8ins. 14.29cms.
Overall Height:7½ins. 19.05 cms.
Weight:17¼lb. 7.82kg.