Come as 4 colors(Infared/Red/Green/Blue) a set
The Battery can continue to run 140 hours
Silica Body with velcro back, it able to attach on any negative velcro
Waterproof but not for diving
Blink / On modes
Power by CR2032 Battery included(disposable/one-off battery, which can't be changed or replaced.).
Can be used as helmet lamp, or to Identify your teammates or for survival.
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