Brinyte A02 is a quality constructed, convenient and portable keychain light. It can reach 125 lumens with a maximum range of 33 meters which can easily meet the daily short-range lighting needs. The STROBE mode is entered by a double-click of the switch and can be used to disorient a stranger or intruder in case of emergency. The STROBE mode can be turned On or OFF by one-switch with memory function. Unit includes a power level indicator to show remianing power and charging mode activation. The tail 0-shaped ring can be conveniently fastened to a keychain or backpack. In short, the A02 Apollo will be one of the best choices for your keychain light and EDC light.