... ,C, Life span, no rusting within 30 years.Solar panel: A, Solar panel, amorphous silicone,mono-crystalline silicone,poly-crystaline sillicone.B ... Low temperature rise, The temperature rise of our low-power LED is within 20 oC,E, Life span ≥50,000hoursBattery, high ... without sunshine 5 times longer than regular solar garden light, solar garden light can work 25 rainy days , realize 100% lighting ...