- What size about this lamp, will this fit my head?
The size is 3.29 in x 2.24 in x 1.81 in, so it is not large and quite comfortable to wear. And it has a comfortable adjustable headband, so do not warry about it, this fits every head.
- Is it just camping head lamp, is there any other functions?
Of course not it is a multi-functional head lamp, it can also suitable repairing car, hunting, fishing, hiking, caving, climbing and house maintenance expect for camping, Especially for anyone in need of hands-free illumination.
- Are lithium batteries good in a led flashlight?Would they make the flashlight brighter or have any advantage over alkalines?
You can use lithium as long as the it can meet the Head Lamp voltage requirement. Alkaline can still make your light brighter. I hope it can help you!