Light Source 35W * 2 Superbright LED Average Illuminance: 18LUX – 20LUX Color Temperature: 4500~6000K Battery Fully-Sealed and Maintainance-Free Lead-Acid Battery Depth of Discharge: 80% DC12V/65Ah Controller DC12V/10A Controller Designed for Solar Street Lamps Protection Against Overcharge or Over-Discharge Light and Time Control Solar Panel 220W with More Than 16% of the Photoelectric Conversion Rate 20 Year Lifespan Lamp Post Built to Customer Specifications Details Fully charged lamps illuminate for 6 – 10 hours per day (adjustable) and last 3-5 days on-end in cloudy or rainy weather.