Due to their light output and long life, high-brightness LEDs are well-suited for use in flashlights. Typically, the LEDs are driven with a constant current. So when the battery voltage drops, the ...
High: 250 lumens; 68m beam; runs 1.5 hours; low: 50 lumens; 31m beam; runs 3.5 hours Multi-function push-button tail switch with charge indicator: Red-charging; Green-fully charged Metal sleeve ...
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