Model Number: EGE-ISSL-18W #5913 Brand Name: ESAVIOR / SOLSON/ OEM Key Specifications/Special Features: LED lamp power: 18W (1800-1980m)Mono solar panel: 18V/18W, lifespan 25 yearsBatteries type: LiFePO4 battery (12.8V/15Ah), lifespan 5 yearsMPPT controller, lifespan 10 yearsLED brand: Epistar, lifespan 50000hrsWorking time: bright mode >10hrs, dim mode >50hrsWorking temperature (°C): -30°C-70°CColor temperature (K): 6000KMounting height (m): 5-6mSpace between lights (m): 18-20mMaterial: aluminum alloyWarranty: 3 years