Dorcy International p6V Floating Luminator Lantern with 6V HD Battery "flashlight luminous" Questions

flashlight both luminous and nonluminous at the same time? It's my science homework and I'm not sure how a flashlight can be both luminous and nonluminous. At first light it DOES sound a bit confusing

...those off, and put the battery in with the springs facing up, I was able to screw the top of the flashlight back on, and it worked. I hope this