1:Professional manufacturer 2.Rated Voltage:80V~265V . 3.LED:3528SMD 4.2years warranty 5.70% energy saving. Specifications: Length: 1.2mDiameter: 30mmPower: 18WInput voltage: 110 to 277V ACFrequency: 50 to 60HzLED quantity: 288 piecesLED type: SMDColors: pure white, moon white and warm whiteLuminous flux: Pure/milk pure: 1800lm ± 15%Warm white: 1600lm ± 15%Color temperature: Pure white: 6,000 to 7,000KMoon white: 4,000 to 5,000KWarm white: 3,000 to 4,000KColor rendering index: 72RaLifespan expectancy: 50,000 to 80,000 hoursWorking environment temperatures: -20 to 40°CSuitable for indoor useAdvantages: Eco-friendly: adopts the LED component as light source, does not contain high-pollution substances, such as Hg, Pb and more, no UV for emittingEnergy-saving: adopts high-efficiency constant current circuit, high-efficiency constant current circuit and transformUnder the same condition, 18W LED tube equal to 40W traditional fluorescent light and saves more than 60% energyLifespan is 5 times longer than the traditional light