... will be respond in 12 hours or earlier,2,We offer sample in immediately 3-7days.3,Well-trained ... 2003,started R&D LED Filament bulbs in 2011,we were one of the earliest enterprise who was able to ... produce them in Chinese mainland.2,We have more than 200 items of lighting in currently, ... more than 20 years in the lighting filed.4,We have a professional and passional sale team.