Thorn Triumph 2

Lantern acquired in October 2005.

This example came from the part of the A52 that forms a section of the Inner Ring Road, and had only received a couple of months' use when it was removed in September 2005. The reason behind the removal is that major roadworks commenced, which meant that some columns had to be taken down to allow easy access for works vehicles, and the one supporting this lantern was not to be re-used.

Unlike my Triumph 1, this lantern's aluminium bodywork is unpainted. Thanks to the lantern seeing little use, the metalwork is still shiny.


The reflector is much larger than that seen in the Triumph 1 is, and the bowl on this is curved glass, rather than curved polycarbonate, as features in the smaller lantern. There is also no cover over the bracket entry, though I don't think that there would have been one.


The lantern opens in the same way, though the fastening clip is currently quite difficult to loosen due to the lantern obviously being much newer.


The gear components are packed tightly into a relatively small space behind the lamp. The gear tray is removable, although, the two plastic brackets used in securing the lampholder to its designated lateral focal position must be loosened first.


The label had already come loose, so I stuck it back on. It states that a maximum of a 250 W lamp should be used, and yet this lantern runs a 400 W lamp complete with gear, which would have been factory fitted, so a mistake has been made somewhere along the line!



After nearly twelve years of languishing in the Collection and not doing anything, I decided that the lantern needed to start earning its keep. Therefore, it was fitted to an AC Ford AC 872 Mk II wall bracket on Friday, 29th September 2017.


The 400 W lamp was rather overpowering when activated...then again, the mounting height for this lantern was only about two metres!


Lantern operation video:

Testing the lantern with my energy monitoring device revealed the following results:

Test Voltage (V) Current being drawn at full power (A) Measured wattage (W) Apparent Power (VA) Frequency (Hz) Power Factor True Power (W) Difference to rated wattage Percentage Difference
241.1 2.05 458 494 49.9 0.93 459.66 59.66 15 %

Thorn Triumph 1 | Thorn Gamma Basique




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