(1) No noise and heat, starting voltage range form ... ) Steady performance, durable, rapid start, long life-time Fluorescent Lamp base(For international business, 50 hertz or 60 hertz equipment and ... voltages required are available(1) No noise and heat, starting voltage range form 110v ... harmonic distortion levels(5) Offer 20W, 30W, 40W Fluorescent Lamp base (Electronic)