Porcelain lamp holders "MR" abbreviation Multifaceted Reflector means a multi-faceted reflector.16 inch unit 16 English = 2 inches = 50.8 (mm) MR11 PAR20 PAR30 lamp cup diameter common caliber, etc.
G5.3 lamp pin pitch of 5.3mm, common G4 G8 G9
Previously MR16 are more for halogen bulb holders, now LED High Power MR16 porcelain lamp holders.
The different lamp holders characteristics were used such as steel, aluminum, brass, ceramics, and plastics material, a pin of the socket caps steel or brass, the electrical contact pads and the pins of brass or the performance of the same material should be used.
James supply the lamp holders, bulb holders, E27 lamp holder and GU10 lamp holder 30 years!
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