Safe and high quality lighting equipment: The E27 socket lamp conforms to CE international standards and is made of high-quality plastic and brass materials, strong electrical conductivity, water and dust resistance, resistance to heat and corrosion, as well as good insulation General product specifications: E27 lamp holder diameter 4cm, height 5.7cm, upper center hole diameter 9mm, rated voltage: 250V, rated current: 4A, thermal resistance temperature: 180C Easy to install: Connect the wire to the positive/negative pole, then connect the wire and the bulb, then fix it with a vise, suitable for hard wire and multi-wire (for 0.5-2.5mm diameter wire) Clear the wires wire lines for more stable installation Wide range of applications: Suitable for E27 screw mouth, energy-saving screw and other E27 screw lights with electric lighting, etc., used in floor lamps, table lamps, chandeliers, wall lamps, floor lamps and others Simple design: The best vintage E27 match and Edison bulb. Create an antique and classic atmosphere for modern life. Simple design is enough to light up your space Note: The data are all manually measured, please allow 1-3cm error due to differences in light and display, there may be some differences color, please refer to the actual item received.