Size: 1000× 1000mm Description: (1)solar panel: 10w lifetime: More than 15 years (2)Storage Battery: 12V/34AH lifetime 3 to 5 years (3)LED: 10hours, LED color: Yellow, red (4)Visual distance: More than 500m (5)Flashing frequency: 24± 2 times/min (6)keep 8 to 10 continuous rainy and cloudy days