Riding through the hispanic neighborhood at about 11 pm. I used to think this area was not wise to go through even in daytime. Night or day, it's really a quiet area. I still keep my guard up, mostly for dogs, but I haven't had any issues at all.
As for lighting, 200 lumens is a good level. I've tried brighter lights and frankly I think they can be too much in that, sure, in a narrow cone of light you see everything, but then your night vision and therefore peripheral vision is compromised.