* Light output test procedure, data from white LEDs. All flashlights were tested at continous operation, at room temperature (20 C, 68 F). An Extech model 407026 light meter set to <daylight> and <Lux> was used for all measurements. Except were
noted branded alkaline batteries (Duracell®, Energizer®) were used in the tests. Useable light definition by Lightwave: 1 Lux is a light output level where an average person could still read fine print in a newspaper at an illumination distance of 6''.