^^ In this case an external 36V battery + LED + some resistors. It's from the electric bicycles forum: http://www.pedelecs.co.uk/forum/electric-bicycles/6859-my-diy-electric-brompton-project-3.html
I'm sure it can be done with any battery pack and a visit to Maplins.
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^^
In this case an external 36V battery + LED + some resistors.
It's from the electric bicycles forum:
http://www.pedelecs.co.uk/forum/electric-bicycles/6859-my-diy-electric-brompton-project-3.html
I'm sure it can be done with any battery pack and a visit to Maplins.