This is an interesting gadget for everyday use, but it falls into the category of things you buy and then forget about. You can attach it to your keys, your dog's or cat's collar, or a bag or pouch. I tested how it works – after 3 hours of charging in the sun, it shone quite well, although the declared 10 hours of operation seems exaggerated. The intense light lasts only 2-3 hours, after which the bulb barely glows. On the plus side – it charges itself and can be used repeatedly, unlike disposable fishing glow sticks. On the minus side – the light doesn't make much of an impression. To sum up: you buy it, forget about it, are happy to have it in your EDC kit, and move on with life. Dimensions: height 5 cm, width 1 cm.