Looking at the title "Low Cost" throws up a red flag for me..... quality is never cheap.
They look like the small solar yard lights Wal Mart sells in the lawn & garden section. We bought a set last year and even thought they do not put out much light they are still working a year later. I use them to light up a dark place in my yard, you can see they are on but almost zero illumination.
How about one of these for camping...
Coleman - Premium Dual Fuel Lantern -
or, if the liquid fuel is not your thing..
Coleman - 8D Retro Family-size Lantern -
I just don't mind paying for quality.
DC
"Life is a great adventure…accept it in such a spirit."
Theodore Roosevelt