Originally Posted by
no1mad
You won't get a consensus on those questions. Some people will claim that 150 is all you need (it works for them), while others will say 300 is the minimum and 600+ preferred (what they need/like).
Everyone's night vision is different. Add to that your speed, your surface conditions, weather conditions, how much ambient light is around you...
wildlife on the paths you ride, drivers, pedestrians, is the road straight or curvy? , is there a bad shoulder? likely to be glass or other obstacles on the road?
Really depends on your situation. I bought a 200 lumen USB charged meteor for $49....works great for me. But might suck for you depending on your situation.