... manufacturer 2. T8 600mm 690-770lm 9W tube 3. competitive factory price 4. TUV,GSG,CE,ROHS 8 tube 8 tube light ... factory hot sale tubeT8 600mm 9W hot sale tube, with competitive factory price. How to contral the cost?1. By the support ... do is offer you the best quality, good service and competitive price to support you.