Unilite Keyring LED Unimax Torch. 20 Lumen White Nichia LED. Weight: 38g (with battery). Size: 19mm x 79mm. Twist head – flood to identify center of attention with an engineered optic lens. Die cast aluminium housing. Keychain attachment. Affect resistant to 1 meter. Waterproof. Beam range: 18 meters. Battery life – full power: 8 hours. Comes with a 1 x 1.5v AAA Duracell Alkaline battery – supplied. A type of things that you to begin with believe a gimmick but becomes a should have after a couple of weeks. A perfect little torch.