Crafted from high-quality plastic, our lamp holder set not only promises but also offers excellent electrical insulation. Owing to its high-temperature resistance, it's safe to use. What's more, the material is such that it's water, dust-proof, and corrosion-resistant, making it a health-conscious choice as it's non- and tasteless. Our set includes 12 white E27 lamp holder sockets equipped with wires and connectors. But the real bonus is the complimentary voltage tester that's added for your convenience. There's no need to buy it separately. Now you can easily measure the voltage and test if your circuit is functioning properly. We believe in preserving our environment and that's why our E27 lamp holder socket reusable. Built with material, it's designed to withstand regular wear and tear, ensuring it's not easily damaged. But when it's time for a change, it can be easily replaced, making it a waste-free product. sure all our product are with your needs. Our E27 lamp holder socket with cable does not only look good but also functions the same. The rated voltage is 250 V with a rated current of 4 A,and heat-resistance of up to 210 C, making it a perfect fit for the universal E27 standard bulbs. Perfectly versatile, the lamp holder can be used according to your dcor preferences, easily combined with various lamp styles. It's the ultimate lighting accessory for not only bedrooms but also commercial spaces like restaurants and cafes. Even offices can advantage from its utility, making it a brilliant addition for every space. color: White material: plastic The actual product may have slight color differences or differences, which does not affect use. Package Contents: 12 x lamp holder E27 1 x Voltage Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.