... 4.Dimmable,dimming range Technical Parameters( 3528SMD High Bright T8 LED Tube ): Item No.ColorVoltage(V)Power(WLED QtyPower factorDimension ... lamp holder +/-90° adjustable.Light Source:High bright SMD LED,the luminous efficiency up to 80-95LM/W.Driver: ... CE certification.Dimmable:Internal isolated dimmable driver,most Triac dimmers available,stable dimming,no flickering,no high frequency noise,dimming ...