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Specifications

solar road stud 
 MS-03D                                            
Solar cell: poly-crystalline silicon / single-crystalline silicon (3v,75mA)
Storage battery: Ni-MH (700mAH) / Super Capacitor (50F)
Light source: super luminosity LED;
LED quantity: 2 pcs                                                    
Luminosity colors: red, green, blue, white, yellow (for any choice) 
Luminous mode: varying type /Constant Type
Work time: 108 hours above for Varying Type(150times/minute); and more than 24 hours for constant type(standard    luminosity intensity) 
Work temperature: -25 to +75 degree C. 
Material of light: Polycarbonate
Resist compression: 20 tons                                          
Waterproof grade IP>67                                               
Life: >5 years (Ni-MH)  or >15 year ( Super Capacitor)               
View distance: over 800m                                           
Guarantee period:14 months