some of the Lock's have a battery backup and the batteries are changed on servicing there are boxes of these and other batteries that just get sent away to be disposed of but most still have lots of life left in them
That's pretty cool how the 9v battery becomes the body of the flashlight. The 9v battery thing would be a deterent for me but since you have access to a bunch of them batteries (for as long as you work for that company)--I'd say go for it also.
Good eye Barrie! I've been looking at that same item myself. Reminds me of the Paklite. I always used to want a Paklite, until I realized that in these parts 9V batteries are prohibitively expensive. But yes, if you can get them from your work or salvage them from a smoke detector, it's probably worth it.
my 2 lights arrived a few days back i am very happy with them and will be doing some run-time tests over the next few days
so far i have tried them on a few batteries of 4-9v at 9v down to around 6v there is a noticeable difference in hi and low (Hi-6 leds low- 2 leds)
below 6v there is not as big a difference to the eye between Hi and low the 2 leds burn brighter switch to Hi and you get 6 leds burning dimer with around the same light output
on the ceiling bounce test i guess around 15 lumen on low and 40-50 on Hi on a fresh eveready 9v zebra-light H31 and fenix L0D used for comparison i will let you know how i get on over the next few days