36 months warranty Power supply: 230V / 50/60 Hz (220V-240V) 270° beaming angleColor temperature: (depending on model)4000K-4500K 2900-3300K warm white5500-6000K daylight white Luminous flux:*6000K = 1600 Lumen ->89Lm/Watt4500K -5% / 3000K -10% Life time:min. 20.000 hoursColor rendering: RA: >80 Operating temperature: -20°C bis 45°CCertificates: CE, Rohs, EMCPower consumption per 1000 hours 18 kWh* Note: The cover of the waterproof batten reduces the luminous flux of the tube (5-7% estimated)