I have now fitted a socket to the lamp and mounted the modified light onto the bike.
As the lamp is rated at 12 Volt, 1.3 to 1.5 Watt I connected it to the 24V battery through 3 off 374 ohms in parallel to give a current of 104 mA and 15V across the battery so using 1.56 Watts. A little over the top but no problem on an overnight soak test.
Photo top left:
Lamp now connected through the rear using the original connectors.
Photo top right:
Early dusk. Shows both the LED Cateye Opticube lamp on the bars tilted down for normal use and the modified lamp below used as an 'always on' running light.
Photo bottom left:
The beam pattern shown onto the garage door with the Cateye tilted up. The Cateye gives a sharp pattern where as the pattern from the modified lamp has a more diffused edge.
Photo bottom right:
Shows the two lamps shown from the front with with the Cateye tilted up for comparison. I must admit that the light from the modified lamp is better than expected so I am well pleased with the project.