Just want to share what I use to light up my tarp/tent on a camp.
The last image is taken without flash to show how much light I get from this.
I could read my kindle, prep food, eat, and clean my gun under the light.
The light string is one of these cheap eBay Christmas light you could get for a few dollars including delivery from China.
Plenty of light from 3 AA battery, so far I have get about 8 nights worth of light (maybe about 5 hours a night) with the same set and it still going strong.
The current drain measured to be about 30 mA and since standard AA eneloop have about 2000 mAh, I expect a set of battery would last at least 60 hours of use, thats about 12 nights with my average usage!! I dont even bother to bring spare batteries..
On longer trips (very rare) I may bring a solar charger to charge the battery, they are common for most of my other gears anyway..
I get the idea from someone called Leipmeister in BushcraftOz forum.
Damned shame to to share.