Local Philips 'Iridium' SGS 252/3/4s.

The Iridium first appeared here in 2002 when a length of St Alkmund's Way was refurbished as part of the 'Connecting Derby' scheme. These used 250W SON-T lamps but since then, other wattages have appeared; from 70W-150W SON and CDM and more recently with various CPO-TW 'Cosmopolis' Lamps as a result of Derby's street lighting PFI. Both side-entry and post-top examples are used. I have also seen the 'Mini' Iridium in use in a private car park; in this case, an LED lamp source is used, rather than any sort of discharge lamp.

The first Mini Iridium (running 24 LEDs) to be installed in a publicly-accessible area in Derbyshire is pictured below. This is on a footpath between Tor Rise and Whitewood Way in Starkholmes (an area between Cromford and Matlock), and, was installed at some point of the week commencing Monday, 14th June 2010, when the footpath was closed for resurfacing and the steps on the footpath were replaced.

This Iridium running a 45W CPO-TW lamp has been retrofitted to a DW Windsor 'Oxford' heritage column on a footpath in Markeaton Park - previously a somewhat vandalised DW Windsor 'Windsor' lantern had been fitted - this was more in-keeping with the style of the column! A blue-cone Royce Thompson SC1000 is employed here.

West Drive in Mickleover saw the installation of Iridiums running 60W CPO-TW lamps in 2006.

'Cosmo' Iridiums are being installed in Mackworth Village as well now - these columns originally supported Thorn Beta 2s. An article regarding the previous lanterns (and the previous lanterns to them!) can be read here.

These post-top CDM-TT Iridiums were used to relight Onslow Rd in Mickleover in early 2003. The previous lighting consisted of various 35W SOX lanterns on sleeved concrete columns.

Onslow Road at night.

Cosmopolis Iridiums are also being trialled in the wider County of Derbyshire - this 140W example is in Grassmoor.

This Iridium is on St Alkmund's Way - just beside the bridge supporting the A6.

This installation is just around the corner from the previous one however a longer bracket is employed due to the wide pavement below.

For many pictures of Iridiums installed under the Derby Street Lighting PFI, click here.

© 2002-2012 English Street Lights Online