cool! do you have the link for that? (i am lazy to google it)
(the kinetic thing really works? when you slow down the light gets brighter? will cars understand you are slowing down? or this is a gimmick and we must ALWAYS be on the lookout for drivers!
https://www.voilaz.com/products/zlite-cycling-bike-rear-light?variant=16309798895689
Light question, is this kinetic brake light thing useful? anyone has this light? comments? THX