Coppens LED fietsverlichting/lampjes set - siliconen - voor en achter licht - Fietsverlichting Multikleur

This ultra bright Led lights have two Lithium-Ion Batteries, which means full and offer a field of view of up to half a mile, this will help other riders, and walkers in low light conditions or in complete darkness.
Water proof shower proof design, isn't afraid of rain flooding.
How do you open the sunshine to exchange the batteries
Stretch off the rubber from the interior and you're going to see the cap that twists off to exchange the battery, The silicon is covering the battery, Take out the silicon covering to show the battery, It's not hard and it may be replaced easily.
Includes 1 x front & 1 x rear light, to alert other road/path users to your presence from either side
Solid beam, slow flash & fast flash modes
Flexible strap & clip for simple attachment to handlebars, framework, bags, helmets & more
Supplied with 4 x CR-2032 batteries (requires 2 x per light)