Easy installation:by expoxy glue and and screwsEnergy saving. Low power consumption， and low cost due to solar powered.Environmental protection. Containing no hazardous substance， and discharging no pollutant.Stable performance. Integrated with active lighting and reflective lighting. Long life-span. The LEDs’working life around 100，000.00 hours， and the solar panels life around 3-5 years.Sturdy and durable. The shell are die-casted one at one time， and can bear 20 ton