Specification: Product Function Description. 4LED: Solar panel: polycrystalline silicon 5.5V 1.5W, Battery: 18650 lithium battery 3.2V 1200mAh, Light source: 5050SMD 4PCS, Color temperature: warm light, Working hours: More than 10 hours, Charging time: 4-6 hours, Waterproof grade: IP65, Shell material: ABS, Product size: 100 * 150 * 62mm, Shell color: black. 6LED: Solar panel: polycrystalline silicon 5.5V 2W, Battery: 18650 lithium battery 3.2V 1500mAh, Light source: 5050SMD 6PCS, Color temperature: warm light, Working hours: More than 10 hours, Charging time: 4-6 hours, Waterproof grade: IP65, Shell material: ABS.