Main Features:
<br />5 modes: High > Mid > Low > Strobe > SOS
<br />AA / AAA battery drive 
<br />With electronic protection and memeory protection
<br />Diameter: 17mm or so
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<br />    Specifications
<br />Specifications
<br />	 Accessory Type: Driving Source                                                  
<br />                        Product Weight: 0.003 kg                                                  
<br />                        Package Weight: 0.050 kg                                                  
<br />                        Product Size (L x W x H): 1.7 x 1.7 x 0.5 cm / 0.67 x 0.67 x 0.2 inches                                                  
<br />                        Package Size (L x W x H): 3 x 3 x 2 cm                                                  
<br />                        Package Contents: 1 x Driver Circuit Board                                                	
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