Adopts the solar panel which with lower intensity of illumination and higher efficiency, co-operate with dedicated lithium iron phosphate battery as power supply .The battery use advanced power management system , which can provide good protection when battery â??s voltage and temperature too high or too low , so it can improve the batteryâ??s service life efficiently. Control circuit adopts micro-power consumption, which reduce controlling circuit â??s power consumption ;light resource adopts high efficient led chip , which has specific of high light intensity , low power consumption , long service life and so on . The product's shell adopts sus 304 stainless steel , this material has the specific of corrosion resistance and light weight , it's very convenient for installation and transportation Lampshade adopts pc material , which can corrosion resistance , anti-uv anti-shock . Double color light resource , the emitting color is white at daytime , at night the emitting color is red.