Product Name: Raised pavement Aluminum Solar Road Stud; LED COLOR: RED, WHITE, GREEN,BLUE,YELLOW; LED quantity: 4 pcs per side or double sides; Battery Type: Ni-Mh battery, Li-on Battery, Supper Capacitor; Service Life: 3-5years (Ni-MH), 5-8years (Li-on) , Over 10 years (Supper capacitor) Waterproof performance: IP68