Nite Glowring

This is a proper pocket glow gadget. It glows, it doesn't need batteries and it doesn't lose its glow if it's kept in the dark for a while. Small enough to fit on a keyring and sit in your pocket, the Nite Glowring also kicks out a steady coloured glow. Sure it won't be enough light to find your way home in the dark, it isn't a torch, but it's plenty bright enough to let you find those keys you just dropped on a pitch black night.

Apparently these were originally used to provide emergency lighting in submarines during the cold war. This has no impact on the way we use them now, but it does make them sound seriously cool.

The science of how it works is simple. A tiny amount of tritium gas is sealed inside the little vial which has an internal coating of phosphor. Electrons emitted from the tritium cause the phosphor to glow for up to ten years. So cool and long lasting too.

Nite Glowring - £8.99 from ShinyShack.com