Can’t get much cheaper than this: https://www.decathlon.co.uk/vioo-100-led-rear-bike-light-yellow-id_8327967.html
They very bright too. You could even use two.
Does the tern have a rear rack with holes for a reflector? The Range currently have bolt-on rear battery lights, so that shouldn't fall off.
No I don't have a rack. Ideally I would like one I leave permanently on the bike - I ride on lit roads for about 2x10 mins - so it doesn't need to be a retina burner. if not I Am not adverse to another strap on .
As a slight aside - anyone know what became of this light ? - no stock anywhere
http://www.pedelecs.co.uk/news/tern-launches-vizy-radial-rear-light/
*adds to to-do list*Does the tern have a rear rack with holes for a reflector? The Range currently have bolt-on rear battery lights, so that shouldn't fall off.