E27 lamp cap for led lamp E27 lamp cap free-soldering for led bulbs. Type: Free-soldering E27 lamp cap Base: E27 lamp cap lamp cap Materials: Nickel Plated Brass, Iron nickel plating Voltage: 220-250V Working Current: 4A Carton Size: 48X32X30cm Gross Weight: 21 kg Quantity per CTN: 2500 PCS