Product Description 1 power supply: solar cell (monocrystalline) 2.5V/120MA 2 Battery: rechargeable battery NI-MH 1.2V/800MAH ,high temperature battery 3 Full recharging for 8hours and working in 120hours constantly 4 aluminum alloy shell with strong resistance to pressure, static pressure, 10 tons 5 display: with 5 ultra bright LED,6pcs 6 working mode: flashing (2Hz + 20%) or constant 7 rev control light intensity: positive light is less than 500Lux 8 visual distance: over 500 meters 9 service life: 3-5 years Product Feature 1 solar power supply, energy saving and environmental protection, convenient installation, working mode automatically start lighting at night Two, installation method 1 installed on both sides of the road, pay attention to whether spike solar panels can be sunlight 2 installation useful glue and nail spike installed by spike Product Specification Working time: 120 hours after charged full Battery life time: more than 3 years Product Size: 105*105*23MM Carton size: 40x27.5x28cm Qty/CTN: 60pcs