... how many lampholders you want,then we could do accordingly,with CE and RoHs certification. LED Portable sample Case,Portble LED ... design.1. Could compare the power consumption of the LED lamp with traditional lamp on the case. 2,. Could choose E27,B22,GU10 ... ,T8,T10 tube........and so on.3, Could add dimmer function if you need4,For LED down lights,we could open ...