components	Technical parameters		Memo
solar panel	Max power	3W	Life span : 20~22 year
	working temperature	- 40℃ ~+85℃
	lighting efficiency	15-17%
	type	A
	material	Mono-crystalline A
light source	Φ5 LED18pcs 1W		Life span : 20000 H-50000 H
battery	12V /4AH.Lead-acid battery, maintenance-free		Life span : 3~5 year
controller	Intelligent light-sensor,                                                                                              overcharge and overdischarge protection		Life span : 8-10 year
lamp body	Aluminum		Life span : 30~50 year
packing	Cartons
work 3-5 consective rainning days