1.power source, solar panel:2.5W 2.battery accumulation:lead-acid battery 6 V/2.5Ah 3.light source:36 led 1200- 1500mcd 4.shell:ABS plastic 5.please charge it for whole day before using it fo the first time,for this is good for prolonging its service life. 6.To avoid the demage of the product,we suggest you should not take apart other parts,except that you can open the solar panel on the upper side and open the bottom cover to change or maintain the battery.