Local Indo RDC4s
This industrial estate in Chesterfield is home to the only-known example of this rather small LED lantern; the County Council's main Street Lighting depot is based here, and so the estate's lighting columns are often used to trial new lanterns, in order to assess performance, ease of installation and maintenance, etc.
The lantern features a slim, curved profile, with a flat glass cover in front of the LEDs. A miniature photocell can be seen emerging from the lantern's canopy.
Two separate circuit boards each running six LEDs (the middle rows of both boards are empty) are positioned alongside each other. Notice the cranked bracket adaptor fitted - the sharp tilt of the majority of Chesterfield's hockey stick columns meant that, whenever an LED lantern was fitted in place of a SOX lantern (for example), the strong directional white light emitted would shine directly into the front windows of any neighbouring properties, potentially causing a nuisance. Although this is obviously not an issue on an industrial estate, an adaptor was still fitted here, in order to assess its own effectiveness.
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