... silicon,10 years life.2. maintenance-free lead-acid battery,6V/5AH, over charge and over discharge protection, ... energy intelligent specialized controller,switch on/off by light and time.4. light source: 6~18 pcs extra ... illumination.6. pole:zinc-plated steel pole and powder coating to color of your choice, ... .10. height:380mm~750mm. Solar bollard,best price offered,one-year warranty for the full set