These key chain torches have an adjustable beam which is adjusted by extending or retracting the body of the torch. At a distance of 33cm the torch will project a beam with a diameter of between approx. 8cm and 40cm.
The torches are just 60mm to 65mm long including the on/off button and depending on beam adjustment x 14mm diameter. The body is made of aluminium alloy so they weigh just 15gms! They have a single very bright WHITE LED that uses 3 x AG13/LR44 batteries (fitted) which last more than 24hrs in continuous use. There is an ON/OFF switch on the end of the torch as well as a keychain.