Solar Road Stud ZH-06 Flash rate: 110-120 times/minute Operating: Up to 15 days successively working in overcast and rainy day after the battery fully charge Solar Power: 0.3w Charge: 110-120mA Battery: Ni-Mh rechargeable battery Lighting source: Super bright LED Colors lighting source: yellow/red LED quantity: 4 pieces(2*2) Current of lighting source: 8-12mA/hour View distance: Over 1km Temperature range: -20℃-60℃ Material of body : Polycarbonate Size(mm): 118?15?5 Carton Size(mm): 632?65?25 QTY/CTN : 60pcs