Decathlon vioo clip 500 light adapter for Ikea Sladda bike

The [Ikea Sladda bicycle](http://www.ikea.com/gb/en/products/ikea-family-products/bicycle-bicycle-accessories/sladda-bicycle-grey-art-30326733/) comes with handy mounts for their lights. However, the lights themselves require plenty of AA batteries, and are of a lesser quality.

Searching for replacements, I found these [Vioo Clip 500 lights from decathlon](https://www.decathlon.co.uk/vioo-clip-500-light-green-id_8385315.html). These great little lights are good for city use: they are designed