It's a product of Portsmouth based Gemma Lighting and Displays.That was very well spotted! The lights on my brother's RAF base are their
Jupiter 48 XL100 model.
A quick look at their product guide reveals that each LED is 1 watt, making it a 48w lantern, athough it consumes 65w of power in total. It produces 4800 lumens (or 3600 operating lumens at 25 degrees Celsius - I'm not sure which figure is applicable to us!). The 55w SOX lanterns they replaced produced around 8000 lumens.
Gemma Lighting also produce 36w and 24w LED lanterns, but nothing close to the 18w lanterns Bolton Council are wanting to install on their residential streets. Their
24w lantern produces 2400 lumens / 1800 operating lumens at 25 degrees celcius, so one assumes that if they manufactured an 18w LED lantern it would produce 1800 lumens / 1350 operating lumens at 25 degrees Celsius.
If that is correct, does that mean that the new lanterns in Bolton's residential streets will be around the brightness of a 100w domestic bulb?
Originally Posted: 26-10-2009, 09:16:31 pm