Originally Posted by
unterhausen
my helmet light is 45 lumens, and it works for illumination if you need it. That might actually be too much light for a helmet light that you can't aim
I think you're kidding yourself. As per information posted against the original article:
"The front LEDs currently emit 50 Lumens which is not enough to act as a headlight."
In my experience, anything less than 300 lumens is only suitable for walking with. Any higher speed needs 300 to 1,000 lumens depending on the activity and other available lighting.