After much searching, I decided to get this Boruit RJ-5000 Headlight. I wear this on my head, over my baseball cap, and under my helmet. Just barely fits. This headlight is massive and heavy, but still comfortable to wear, even for many hours. Runs on two 18650 lithium batteries. USB charging port on the battery case, so I can actually charge while wearing. Strap is adjustable, and fits snug. four modes: low, medium, high and strobe. This light is rated at 6000 lumens, but this is false advertising. My guess is this light is around 600 lumens, not even close to 1000 lumens, but still a very good light.

As you can clearly see, this Boruit RJ-5000 Headlamp is huge. I prefer devices that have removable batteries. After much research, I decided to go with a headlamp that uses 18650 lithium batteries, which are powerful.

I really like this Boruit RJ-5000 Headlamp .... I can move my head around to light up wherever I want to see clearly. This headlamp is very bright .... bright enough to see clearly what is ahead, so I can avoid  holes, and other obstacles