Through Authenticate 
CR2 battery power resource, chargeable and non-rechargeable you all can choose.
Silicon band makes the banding range longer, and it’s much better than rubber.
Silicon band makes the banding range longer, and it’s much better than rubber.
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Model Name
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STL-B
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STL-CR
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Power Resource
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CR1632 battery
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CR2 battery
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Weight
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12g
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16g
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Material
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Aluminum shell + LED light + Silicon band
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Lights output
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2000mcd
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2400mcd
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Function
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Steady-> Flash-> Off
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Runtime
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Steady-20hrs;Flash-60hrs
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Steady-50hrs;Flash-200hrs
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depends on battery’s capacity
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LED Color option
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Red, White
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Shell Color option
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Black. Silver. Red, Blue, customized
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