Cyalume SnapLight Red Light Sticks - 6 Inch Industrial Grade, High Intensity Glow Sticks with 12 Hour Duration (Pack of 30) by Cyalume

Very happy with the duration these snap lights glow for! Will purchase again!

Lasted for 8-12 hours full power (rates for 12 but didnt check at the time), and for another 12-16 hours after that with minimum intensity. Still useful then if you had to mark ropes or tripping hazards in the dark! Puts out a good light amount, but not useful for reading unless pressed right against the thing youre trying to read.

These were added to our emergency kits at home and in the vehicles. They provide an adequate amount of light to navigate around the house or around the immediate area of one’s car (inside and out). They last for at least 12 hours and are much safer than candles as there is no open flame. In my opinion these are a solid addition to anyone’s power outage/blackout kit.

the stick on the left has cracked for 24 hours and the stick on the right is freshly cracked

I bought these mostly for in the kids tents at night. I end up using them myself as a low light in site. I can see around my site, find what I need and not advertise my location to everyone.