My small interest in this subject has been sparked by this Ringways Manchester video on SOX lamps in their local area a while back:
Much of my local area's street lights largely consist of metal halide lamps that were successors to SOX in the late 2000s, but was before the advent of LED. One SOX lamp remaining is adjacent to a nearby park, where its location is just beyond the realm of public highways. After putting out a question to a Facebook group, streetlamp enthusiasts have identified this as a Philips MI26. It still lights up as normal, but compared to metal halide shines all around instead of concentrating downwards. My town started converting a few to LED but time will tell how quickly the conversion goes, and how long this one remains SOX.
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