LED lamp : 18W, LED chip from Bridgelux of the USA, 90~100lm/w

Solar panel : 50W, Mono crystalline or poly crystalline.

Battery : 12V/55Ah, maintenance free sealed lead-or gel battery.

Pole : 3.5m high, hot galvanized steel with plastic spray

Controller : 12V/5A, light and timer control, over charges and discharge protection

Working time : 9-11 hours per day, 3-5 overcast and rainy days