The larger flashlight has a handy wrist strap so if my hand is bumped, my flashlight doesn’t hit the ground and I can quickly grab it. I can run the flashlights off the lithium batteries that come with them or I can use 3 triple a batteries – it’s nice to have a choice. There is a user manual page that comes with the flashlights that have good information in it.
One thing I do want to comment on. Put these flashlights up and away from children. Do not allow them to shine them in their eyes, as the flashlights are very strong and are blinding. These flashlights are not toys, but serious tools that are very well made and meant for heavy duty business.
If you would like to purchase some, go here: https://www.amazon.com/gp/product/B01MSWSBTS/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1