When it comes to fluorescent tubes, the T2 tube is a well-known product. The T2 Tube has a W4.3 fitting and a diameter of 7 mm. The unique feature of the T2 tube, compared to other fluorescent lighting, is that the wattage of the lamp is connected to the length. Our advice is to look carefully at the length and wattage of the tube, so you’re sure you are getting the perfect one! For questions about this, you are always welcome to contact our customer service.