CyalumeTechnologies SnapLight Blue Glow Sticks – 6 Inch Industrial Grade, Ultra Bright Light Sticks with 8 Hour Duration (Pack of 10)

These work great. Various applications and can go on for more than 12h if you don't mind them getting dimmer. These are extremely strong and great for ANY need or occasion. It is however, slighlt expensive. But you do get a bang for your buck.

I bought these in case of a power cut and for that I’m sure they will be fine. Tried one and set a timer, whilst they do “glow” for 8 hours they don’t produce “usable light” after an hour. The stick in the picture has been going for 2 hours and as you can see it barely lights anything

Last for a long time and is incredibly bright. Exceptional quality.

These chem lights are ok, was expecting more brightness from them as i have had others in the past which were brighter.But i must say for hours of lumination they certainly did perform and lasted well beyond hours stated ..But saying that the blue is a nice colour but would not recommend if you intend to use as discrete reading light..

Ultra Bright, what rubbish, they hardly glow, used one yesterday, very disappointed in it, on snapping it glowed slightly and 10 mins u could hardly see it, crap

A great addition for your first aid kit. Many uses - car break downs, mountain rescue or acid raves! Brilliant illumination. Other shades are available!