Here we have LED key ring torches with a choice of LED colours; red, blue, green or yellow. The red LED is particularly useful for for reading charts at night without resorting to using a white light source, ideal for astronomers.
The Unilite Prosafe PS-K1 key ring torch offers 75 lumens output from it's 1 watt white LG LED. Powered by a single AAA alkaline battery, the PS-K1 has a run-time of 3 hours and can shine up to 30 metres distance.
These key ring torches are fantastic, once you add one to your key ring, you will wonder how you ever lived without it. The casing is made of a tough polycarbonate, which can withstand a lot of day to day punishment.