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E27 Screw Base

Updated: 2026-07-19

Overview

The E27 light bulb is one of the most common types of screw-base bulbs, recognized by its 27mm diameter Edison screw base. It is widely used in households, offices, and industrial settings due to its ease of installation and broad compatibility with various fixtures. Originally developed by Thomas Edison, the E27 base has become a global standard. Modern versions include incandescent, LED, CFL, and smart bulbs, offering a range of energy efficiencies and functionalities.

Product Features

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E27 bulbs are characterized by their screw-in design, which ensures a secure connection and easy replacement. They are available in multiple wattages and lumens, catering to different lighting needs, from ambient to task lighting. Energy-efficient options like LED E27 bulbs have gained popularity due to their long lifespan and lower power consumption. Smart E27 bulbs also offer features like dimming, color changing, and remote control via smartphone apps.

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Main Uses

E27 bulbs are versatile and used in a variety of settings, including table lamps, ceiling fixtures, pendant lights, and outdoor lanterns. Their widespread adoption makes them a staple in both residential and commercial lighting. In industrial environments, E27 bulbs with higher wattages are often used for task lighting in workshops or warehouses. Decorative E27 bulbs, such as vintage or filament styles, are popular in hospitality and retail spaces.

Culture and Development

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The E27 bulb's history dates back to Thomas Edison's invention of the Edison screw base in the late 19th century. This design revolutionized lighting by providing a reliable and standardized connection method. Over the decades, advancements in technology have led to the development of more efficient and durable bulbs. The shift from incandescent to LED and smart bulbs reflects ongoing innovations in energy conservation and user convenience.

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B2B Procurement Guide

When purchasing E27 bulbs in bulk, consider factors like energy efficiency, compatibility, and lifespan. LED bulbs, though initially more expensive, offer long-term savings due to their lower energy consumption and extended lifespan. Verify the specifications, such as wattage, lumens, and color temperature, to ensure they meet the intended application. For smart bulbs, check compatibility with existing smart home systems. Reliable suppliers often provide certifications like CE or RoHS to guarantee quality and safety.

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