Years ago my wife bought a Costco pack of flashlights. One of them is amazing. It takes C cell batteries but it has an adjustable lens that can tighten up the beam of light which is already amazingly bright. I rarely use this light. It is just way more powerful than needed.
For walking in the dark the flashlight that really works is the one you have with you. I second the recommendation for Harbor Freight flashlights. You can get them for about $1. They put out plenty of light and I have never had one fail. They run for a great many hours on a set of batteries. I also like the fact that they are simple. One click and the light goes on. Click again and it turns off. Sounds simple but it seems a great many LED flashlights are way more complicated with low beam, high beam, and intermittent settings. You need to push the switch many times just to get the unit to turn on and then off.