Revo Lucidor 90-watt 'geared' lantern. A development of the much more aesthetically pleasing, and light-weight 'remote-geared' Lucidor 90w sodium lantern, the geared version is a very heavy and more cumbersome affair (see the pictures below for a comparison). Available for side-entry or top-entry mounting, these lanterns were designed for use where it was difficult or impractical to use remote geared lanterns, for instance on telegraph pole mounted brackets where there was no control box in which to fit the remotely mounted control-gear. The main body of the lantern is constructed from cast aluminium with a long raised centre section into which the control-gear is mounted, normally a large Pamer leak-transformer, which added significantly to the weight of the lantern. No reflector plate was used in these larger lanterns, but the plastic bowl is common to the remote-geared version. REVO also made a smaller 'geared' Lucidor for 35-watt lamps, which was probably the more popular of the two geared variants.

The example in the collection came from Barmouth in North Wales and was one of many similar Lucidors used on the A496 Barmouth to Harlech Road, and had been replaced as part of an ongoing road safety improvement scheme. Some of these Gwynedd Lucidors had been installed as late as the early 1980's and carry 'Simplex  Lighting' labels, but still have the name 'REVO' cast into the canopy. It can only be assumed that these were old REVO stock still held by Simplex at that time.  

The ex-Barmouth 90-watt 'geared' REVO Lucidor; the hammer and toolbox give an idea of size.

In-service picture of a 'geared' Lucidor on the A496 in Barmouth, N Wales; these lanterns are unusual as they were installed in the early 1980's, long after general production ceased.

Inside the geared Lucidor is the large 'Parmar' leak transformer that makes these lanterns so heavy. Strangley, REVO opted not to use a reflector plate above the lamp, which gives rise to the thought that the geared version was a latecomer to the Lucidor range, and may have been built to a price rather than to an exacting standard.  The lamp support hoop is a weak point with these lanterns, as they appear to have snapped off in quite a few of the geared Lucidors I have seen.

This example of the remote-geared 90-watt Lucidor Lantern with 'over-shoe'  was seen in Wolverhampton in 2005. The square-sectioned aluminium over-shoe was originally designed for fitting these lanterns to concrete brackets.

This is the more unusual version of the Lucidor, designed for fitment to tubular steel brackets with the smaller centrally mounted spigot receptor. Again, another example from Wolverhampton.