My Fenix E12 v2.0 is advertised as having modes of 5, 30, and 160 lumens. I find that 5 lumens is a good low utility brightness for most things where I just need to be able to see where to put my foot at night. I've used my E12 a couple of times this past week while riding my bicycle to the grocery store at night, and I will say that for a bicycle headlight, the 160 lumen mode is about the minimum I'd feel comfortable using at anything more than a slow speed, but I avoid using it, since it eats battery power quickly.
Fortunately for me, I pedal very slowly, since I'm actually partially disabled and can barely pedal on the flat in low gear, so the 30 lumen mode works well enough. 30 lumens is fine for walking outdoors at night, but 60 would really be better if I were on unfamiliar ground.
The E12 replaced my Inova X1 as my EDC light and the X1 is advertised as producing 80 lumens and 11 lumens. I found the 80 lumen mode more than enough walking at night in the woods, and the 11 lumen mode more than enough walking around my house at night, to the point where I actually cup in in my hand to prevent from losing too much night vision.
Before that, I carried a Leatherman Serac S3, with 7/43/100 lumen modes, and as you can imagine, the 7 lumen mode was fine for most things, the 43 was fine out walking at night, and the 100 lumen mode worked when I needed to see something pretty far away.
I'm planning on getting a Fenix PD36 TAC to double as a bicycle headlight and occasional use "tactical" flashlight. It has modes of 30 (Eco), 150 (Low), and 350 (Med) lumens. I will ignore the High and Turbo modes, since those do not have flat brightness/discharge curves. The 30 lumen mode can be used the same as the 30 lumen mode on my E12, the 150 lumen mode will be great for slow riding, and the 350 lumen mode should be great for faster riding, if I actually get the electric bicycle I want.
Somewhere around here, I have a Bushnell 20154 that I think was rated at 270 lumens? 300? If you look up that product number you will see ratings of 325/39 lumens, but I'm not sure that the one I have wasn't an earlier generation of that model. I always forget. I never use the thing, anymore, and when I did use it, I mainly used its low power mode. In any case, the low power mode, whether it was 25 lumens or 39, was more than enough for a medium duty utility flashlight.