... , Life span, no rusting within 30 years.Solar panel: A, Solar panel, amorphous silicone,mono-crystalline silicone,poly-crystaline ... yearsController, intelligent digital controller-A. Self development LED intelligent module(power consumption 0.06W to replace regular LED constant ... duration without sunshine 5 times longer than regular solar garden light, solar garden light can work 25 rainy days , ...