LED bulb is the first products of NC Lighting, we produce halogen bulb before year 2010 and start to R&D LED G9 G4 bulb from the year 2010, start production of silicone LED G9 G4 bulb. After that on, we improve material from silicone to PC, then ceramic to make sure much more higher quality. Beside, NC Lighting always grow up with strict production process.