Headlights, no. Blinking taillights are allowed though (with a minimum blink frequency of ~3.3 Hz / 200 per minute) and those are the ones I mentioned. Blinking

Headlights, no. Blinking taillights are allowed though (with a minimum blink frequency of ~3.3 Hz / 200 per minute) and those are the ones I mentioned. Blinking taillights do make bicycles stand out more which can only help in a country like Sweden where cycle paths are as rare as hen's teeth. In the Netherlands (where I'm from originally) this is less urgent as there are plenty of cycle paths.