Power (W): 2/3; CCT (K): 3000/6500; IP65; Solar Panel: Mono Crystalline Technology, Voltage (V): 5 Battery: Lithium LiFePO4 Technology, Capacity (Ah): 2/2.6, Voltage (V): 3.2/ 3.7; Smart charge, discharge control enable battery protection and longer lighting time; Auto turning on/ off with light sensor or auto change brightness/CCT with sound sensor when someone is near; Flickerfree; CE, KC certified can apply for other standards as requirements; Warranty: 2 years; OEM accepted;