Industria 2500 'Lamda'
55w PL-L Fluorescent lantern
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Industria 2500/Lamda 55w
fluorescent lantern. Made by the Dutch concern Industria, the 2500 is
a modern day fluorescent lantern designed for use with compact fluorescent lamps, and is beginning
to see widespread use in certain parts of the UK. In the Midlands region, Staffordshire is the place to see these lanterns in numbers and
where they
have been used in the County Council's PFI scheme to replace obsolete and
less efficient lighting. The lantern, which is 700mm long and 210mm wide is constructed from impact-resistant glass reinforced plastic, and is fitted with an impact-resistant, UV-stabilised polycarbonate bowl. The 2500 Lamba can be ordered for operation with 18w TLD lamps, or 24w, 36w, 55, and 80w PL lamps, and is fitted with an electronic ballast as standard. The fitting can be side-entry mounted, or mounted post-top with a specially ordered adaptor, and can be used on main roads at higher mounting heights with 80w compact fluorescent lamps. The example in the collection is a 55w variant and was intended for use in Staffordshire, but had been returned to the depot with faulty electronic ballast, which had already been removed. The lantern was acquired in October 2006, where upon a suitable replacement ballast was sourced along with a new Philips PL-L 840/4P 55w lamp. The replacement ballast has yet to be fitted and wired in.
The unmistakable profile of the Industria 2500 Lamda lantern.
The underside view of the lantern showing the proportions of its clear plastic bowl
With the bowl open the polished reflector and 2G11 4-pin lamp holder are revealed. The length of the reflector is determined by the length of the lamp used, that is, the 36w version would have a shorter reflector than this example for 55w lamps.
Lantern with the gear tray removed and upturned. This lantern came without its original ballast; the replacement ballast has merely been placed where it would normally be fitted.
Close up of the replacement Tridonic.Atco digital ballast for 55w CFL lamps. This is a non-dimmable, constant output ballast.
The label on the galvanised gear tray states that the lantern is for use with 230v 50 Hz 55w PL lamps, and has an excellent ingress protection rating of IP65.
Philips PL-L 840/4P 55w compact fluorescent lamp for use in the 2500 Lamda.
An Industria-2500 Lamda fluorescent lantern seen in the village of Bilbrook, Staffordshire in 2006 where they have been used to replace obsolete mercury lighting. Note this lantern has the shorter reflector above the lamp for the smaller 36w PL-L lamp, but like the 55w version these lamps give off a very pleasing light at night. For more information on the 2500 Lamda lantern visit: http://www.wrtl.co.uk/html/cat-products/-1--road-lamda-ip65-2-31.htm |
Copyright(c) 2005 Claire Pendrous. All rights reserved.
Please note that all pictures are by Claire Pendrous, or are part of the Claire Pendrous photographic collection unless otherwise stated; none of these images can be copied without obtaining prior permission.