Pocket lighter review for arrow building/repairs/serving burning etc

Just tested a couple of lighters off a well known auction website for less than £3.00 each. They both are pocket jet lighters that work very well even in a breeze. Good for repairing arrows in the field, burning serving ends etc.
Left is a Zengaz - good flame control, handy cap but can get in the way sometimes. Flame lock so you can lock the flame on or off. Easily build one set of 12 arrows on one lighter fill, probably a lot more. Opaque finish so not easy to see fill level.
Right is Prof...

Pocket lighter review for arrow building/repairs/serving burning etc