A) 4W multi silicon tempered glass encapsulated, lifetime: 25years
B) 12V/2.3Ah maintenance-free lead-acid battery, lifttime: 3-5years
C) Switch on/off automatically by light control
D) Battery over-current and over-discharge protection
E) Cast aluminum pole with plastic-coated: 80cm height
F) Stainless hexangular screw for connection
G) Super bright white LED 2.4watt, equivalent to 24W incandescent lamp