E27 Bulb Socket Ceiling Fan: Complete Analysis of Standards, Types, and Industry Performance

Types of E27 Bulb Socket Ceiling Fans

An E27 bulb socket ceiling fan integrates a ceiling fan with an E27 light bulb socket—commonly known as the Edison screw base—which is the standard light bulb fitting in Europe and widely used globally. This design combines efficient air circulation with customizable lighting, making it a versatile choice for homes, offices, and commercial spaces.

The E27 socket supports a wide range of bulb types, including incandescent, halogen, CFL, and LED, allowing users to choose based on brightness, color temperature, and energy efficiency. These ceiling fans come in various styles, sizes, and smart capabilities, catering to different functional and aesthetic needs.

💡 Compatibility Note

The "E27" designation refers to the 27mm diameter of the screw base. Always verify bulb compatibility with your fan's maximum wattage rating and enclosed fixture suitability, especially when using LED or CFL bulbs.

Standard E27 Bulb Socket Ceiling Fans

Ideal for basic lighting and ventilation needs, these fans feature one or more E27 sockets with a straightforward on/off switch or pull chain.

• Simple, reliable design with minimal maintenance
• Cost-effective solution for bedrooms, hallways, and small living areas
• Easy installation—often compatible with standard ceiling mounts
• Supports a wide variety of E27 bulbs for personalized lighting

Best for: Budget-conscious buyers, rental properties, and traditional homes

Remote-Controlled E27 Ceiling Fans

Equipped with a handheld remote, these fans allow wireless control of both fan speed and lighting functions.

• Convenient operation from anywhere in the room
• Multiple speed settings and light on/off control
• Some models include timer and reverse airflow functions
• Eliminates the need for wall switches or pull cords

Best for: Living rooms, master bedrooms, and rooms where wall switches are inconvenient

Dimmable E27 Ceiling Fans

Designed to work with dimmable E27 bulbs and include an integrated dimmer switch or remote for adjustable brightness.

• Creates ambiance by adjusting light intensity
• Energy-saving potential by reducing light output when full brightness isn’t needed
• Compatible with dimmable LED or halogen E27 bulbs
• Enhances comfort in dining rooms, lounges, and bedrooms

Best for: Spaces requiring mood lighting, such as dining areas and entertainment rooms

E27 Ceiling Fans with Light Kits

These fans come with built-in multi-socket lighting fixtures (light kits) that enhance illumination output.

• Multiple E27 sockets (2–5 bulbs) provide bright, even room lighting
• Supports decorative bulb styles like globe, torpedo, or vintage filament LEDs
• Ideal for rooms with poor ambient lighting
• Available in modern, rustic, and industrial designs

Best for: Kitchens, large living rooms, and commercial spaces needing strong illumination

Energy-Efficient E27 Ceiling Fans

Optimized for low power consumption, these fans are designed to work with energy-saving E27 bulbs like LEDs and CFLs.

• Reduces electricity bills over time
• Environmentally friendly with lower carbon footprint
• LED-compatible sockets often support 50,000+ hour bulb life
• Generates less heat than incandescent bulbs, improving safety

Best for: Eco-conscious households, hot climates, and all-day usage environments

Smart E27 Ceiling Fans

The most advanced option, integrating E27 sockets with smart technology for remote and automated control.

• Compatible with Wi-Fi or Bluetooth-enabled smart bulbs (e.g., Philips Hue, LIFX)
• Control via smartphone apps, voice assistants (Alexa, Google Assistant, Siri)
• Supports scheduling, color changing, and scene automation
• Can sync with smart home ecosystems like Apple HomeKit or Google Home

Best for: Tech-savvy users, modern smart homes, and automated lighting environments

Type	Light Control	Energy Efficiency	Installation Complexity	Ideal Use Case
Standard	On/Off Only	Medium (bulb-dependent)	Low	Basic residential lighting
Remote-Controlled	Wireless On/Off & Speed	Medium to High	Medium	Living rooms, bedrooms
Dimmable	Adjustable Brightness	High (with LED)	Medium	Dining rooms, lounges
With Light Kit	Multi-Bulb On/Off or Dimmable	High (with LED bulbs)	Medium to High	Kitchens, large rooms
Energy-Efficient	On/Off or Dimmable	Very High	Low to Medium	Eco-homes, all-day use
Smart	App/Voice/Automation	Very High	High	Smart homes, modern interiors

Expert Tip: When pairing E27 ceiling fans with LED bulbs, ensure the bulbs are rated for enclosed fixtures if the fan’s light housing is sealed. This prevents overheating and extends bulb lifespan.

Function and Features of E27 Bulb Socket Ceiling Fans

Ceiling fans with E27 bulb sockets combine efficient air circulation with versatile lighting solutions, making them a popular choice for both residential and commercial spaces. These multi-functional fixtures not only help regulate indoor temperatures but also serve as primary or supplementary light sources. Understanding their core features enables homeowners and designers to make informed decisions that enhance comfort, energy efficiency, and room aesthetics.

Key Features and Functional Benefits

E27 Bulb Socket

The E27 (Edison Screw 27mm) socket is one of the most widely used lighting connectors globally. Its standard size allows compatibility with a broad range of bulbs, including incandescent, compact fluorescent lamps (CFLs), and LED bulbs. This versatility gives users the freedom to choose lighting based on brightness, color temperature, and energy efficiency.

LED bulbs are especially recommended for E27 ceiling fans due to their low heat output, long lifespan, and minimal energy consumption. The ease of replacing bulbs makes maintenance simple and cost-effective, while the universal design ensures replacement availability almost anywhere in the world.

Ceiling Fan with Integrated Light

Combining a ceiling fan with a built-in light fixture eliminates the need for separate installations, saving space and reducing electrical complexity. These dual-purpose units are ideal for living rooms, bedrooms, kitchens, and outdoor patios where both airflow and illumination are essential.

Modern designs blend form and function, offering stylish finishes—from rustic wood blades to sleek metallic housings—that complement various interior themes. Whether you're aiming for minimalist modernity or vintage charm, there's an E27 ceiling fan to match your decor.

Remote Control Compatibility

Many E27 ceiling fans come equipped with remote control systems, allowing users to adjust fan speed, lighting intensity, and even rotation direction without getting up. Advanced remotes may include programmable timers, sleep modes, and memory settings that recall your preferred configurations.

This level of convenience enhances user experience, especially in larger rooms or high-ceiling installations where wall switches are less accessible. Some models also integrate with smart home systems via Wi-Fi or RF technology, enabling control through smartphone apps or voice assistants like Alexa or Google Assistant.

Reversible Motor Operation

A reversible motor is a key feature for year-round comfort. In summer, the fan rotates counterclockwise to push cool air downward, creating a wind-chill effect that makes the room feel cooler. During winter, switching to clockwise rotation at a low speed gently redistributes warm air that accumulates near the ceiling, improving heating efficiency and reducing energy costs.

This adaptability makes E27 ceiling fans a smart investment for climate control across seasons, contributing to both comfort and energy savings—especially when paired with energy-efficient LED lighting.

Dimmable Light Fixture

Fans with dimmable E27 sockets allow users to customize light levels based on time of day, activity, or mood. Dimming capabilities are particularly useful in living rooms and bedrooms, where softer lighting supports relaxation in the evening.

To use dimming functionality, ensure that both the fan’s wiring and the installed bulb (e.g., dimmable LED) are compatible with the dimmer switch or remote control system. Proper setup ensures smooth performance without flickering or buzzing, enhancing both ambiance and energy conservation.

Pull Chain Operation

For simpler, no-tech operation, many E27 ceiling fans feature pull chains extending from the motor housing or light kit. Typically, one chain controls fan speed (low, medium, high), while another toggles the light on and off.

While pull chains lack the sophistication of remotes or smart controls, they are reliable, easy to use, and do not require batteries or complex setup. They are especially favored in utility rooms, garages, or secondary spaces where advanced features are unnecessary.

Feature	Benefit	Best Use Case
E27 Socket Compatibility	Supports multiple bulb types including LED, CFL, incandescent	Spaces requiring flexible or upgradable lighting options
Integrated Light & Fan	Saves space and reduces installation costs	Rooms with limited ceiling space or single fixture requirements
Remote Control	Convenient, hands-free operation of fan and light	Bedrooms, living rooms, high-ceiling areas
Reversible Motor	Improves heating and cooling efficiency year-round	All-season use in climates with temperature extremes
Dimmable Lighting	Adjustable brightness for ambiance and energy savings	Living areas, dining rooms, bedrooms
Pull Chain Control	Simple, reliable mechanical operation	Kitchens, bathrooms, utility rooms

Additional Considerations

• Bulb Wattage and Heat: Always check the maximum wattage rating of the E27 socket. Exceeding it can damage the fixture or create fire hazards. Opt for low-heat LEDs to prevent overheating within enclosed light kits.
• Noise Level: Look for fans with silent or whisper-quiet motors, especially for bedrooms or study areas. High-quality bearings and balanced blades reduce operational noise.
• Blade Material: Wood, metal, or plastic blades affect both aesthetics and airflow efficiency. Wooden blades offer quiet operation and warmth; metal provides durability and modern style.
• Energy Efficiency: Choose ENERGY STAR-rated models or those with DC motors for lower power consumption and quieter performance compared to traditional AC motors.
• Installation Height: Ensure proper clearance from ceiling to blades (at least 7 feet above floor) and consider using downrods in rooms with high ceilings for optimal airflow and lighting distribution.

Important: When installing or replacing bulbs in an E27 ceiling fan, always turn off the power at the circuit breaker to avoid electrical shock. Use only bulbs that match the fixture's voltage and wattage specifications. For dimmable and remote-controlled models, verify compatibility between the bulb, receiver, and control system to prevent malfunctions. Regular dusting and inspection of both fan motor and socket connections help maintain performance and safety over time.

Scenarios of E27 Bulb Socket Ceiling Fans

E27 bulb socket ceiling fans combine efficient air circulation with versatile lighting capabilities, making them a popular choice across various environments. The E27 (Edison Screw 27mm) base is one of the most common and widely supported bulb types globally, allowing for easy replacement and compatibility with incandescent, LED, CFL, and smart lighting options. This dual functionality—ventilation and illumination—makes E27-equipped ceiling fans ideal for diverse applications where both comfort and visibility are essential.

Commercial Spaces

E27 bulb socket ceiling fans are extensively used in commercial environments such as supermarkets, retail stores, shopping malls, restaurants, cafes, and office buildings. These spaces benefit from the dual advantage of consistent airflow and bright, adjustable lighting that enhances both customer experience and employee productivity.

• Retail & Hospitality: In stores and dining areas, these fans help maintain a welcoming ambiance while reducing heat buildup from lighting and foot traffic.
• Office Environments: Ideal for open-plan offices and corporate lobbies, they support concentration and comfort during extended work hours by improving air quality and providing glare-free illumination.
• Energy Efficiency: When paired with LED E27 bulbs, these fans significantly reduce energy consumption without compromising on performance.

Pro Tip: Use dimmable LED bulbs in E27 sockets to create adaptable lighting moods in restaurants or boutique retail spaces.

Workshops and Factories

In industrial settings like factories, workshops, and warehouses, E27 ceiling fans play a crucial role in maintaining a safe, cool, and well-lit working environment. High ceilings and heat-generating machinery make ventilation and visibility top priorities.

• Heat Dissipation: Fans help disperse heat produced by equipment and machinery, reducing the risk of overheating and improving worker comfort.
• Improved Safety: Adequate lighting from E27 bulbs ensures clear visibility around tools, moving parts, and hazardous zones, minimizing accident risks.
• Durability: Many industrial-grade E27 ceiling fans are built with robust materials to withstand dust, moisture, and continuous operation.

Key Benefit: Combining lighting and airflow in one fixture reduces wiring complexity and maintenance costs in large facilities.

Public Areas

E27 socket ceiling fans are commonly installed in public buildings such as libraries, community centers, government offices, airports, train stations, and bus terminals. These high-traffic areas require reliable, low-maintenance solutions for year-round comfort.

• Large-Space Comfort: The fans promote even air distribution in expansive halls and waiting areas, especially during hot seasons.
• Cost-Effective Lighting: E27 sockets allow municipalities and facility managers to use energy-saving bulbs, lowering operational expenses.
• Accessibility: Standardized E27 bases make bulb replacements easy for maintenance crews, minimizing downtime.

Did You Know? Many public buildings now pair E27 ceiling fans with motion-sensing LEDs to optimize energy use during off-peak hours.

Residential Settings

In homes, E27 ceiling fans are a practical and stylish solution for living rooms, bedrooms, kitchens, dining areas, home offices, and covered outdoor patios. Their ability to provide both light and airflow makes them a space-saving upgrade over separate fixtures.

• Living Areas: Enhance relaxation and social gatherings with adjustable brightness and gentle breeze control.
• Kitchens & Dining: Reduce cooking heat and improve air quality while offering focused lighting over dining tables.
• Home Offices: Support focus and alertness during long work sessions with consistent lighting and airflow.
• Outdoor Use: Weather-resistant models with E27 sockets are perfect for covered patios and porches, enabling extended outdoor enjoyment.

Smart Upgrade: Pair your E27 fan with smart bulbs to control color temperature and brightness via smartphone or voice assistant.

Installation Insight: When installing E27 ceiling fans, ensure the electrical box is rated for ceiling fan use to support both weight and vibration. Use LED bulbs in E27 sockets to minimize heat output and maximize lifespan—some LEDs last up to 25,000 hours, reducing replacement frequency in hard-to-reach areas.

Application	Primary Benefit	Recommended Bulb Type	Installation Tip
Commercial Spaces	Enhanced ambiance and productivity	Dimmable LED or warm-white CFL	Use anti-flicker drivers for consistent lighting
Workshops & Factories	Heat reduction and visibility	Bright white LED (5000K–6500K)	Install protective covers if exposed to debris
Public Areas	Energy efficiency and low maintenance	Long-life LED with high CRI	Group fixtures on timers or sensors
Residential Settings	Comfort and space optimization	Tunable white or color-changing smart LED	Ensure remote or wall control compatibility

Additional Considerations

• Bulb Compatibility: E27 sockets accept a wide range of bulb types, including vintage-style Edison bulbs for decorative appeal.
• Wattage Limits: Always check the fan’s maximum wattage rating to avoid overheating; modern LED bulbs typically use 6–10W for equivalent brightness to 60W incandescents.
• Aesthetic Flexibility: Choose from various fan designs—modern, rustic, industrial—to match interior decor while maintaining functional benefits.
• Noise Levels: Opt for fans with silent motors and balanced blades, especially in quiet environments like libraries or bedrooms.
• Sustainability: Using energy-efficient E27 LEDs in ceiling fans reduces carbon footprint and utility bills over time.

How to Choose the Right E27 Bulb Socket Ceiling Fan

Selecting the perfect ceiling fan with an E27 bulb socket involves more than just aesthetics—it requires careful consideration of size, lighting compatibility, functionality, and quality. An E27 (Edison Screw 27mm) socket is one of the most common light bulb bases worldwide, offering versatility in bulb types and brightness options. This comprehensive guide walks you through the key factors to ensure your ceiling fan enhances both comfort and style in your space.

Important Note: Always verify your local electrical codes and ceiling mounting requirements before installation. If unsure about wiring or load capacity, consult a licensed electrician to ensure safe operation.

1. Consider the Fan's Size and Design

Choosing the right size and design ensures your ceiling fan functions efficiently and complements your room’s decor.

• Room Dimensions: Match the fan diameter to your room size:
  • Small rooms (up to 75 sq ft): 29–36 inches (e.g., bedrooms, offices)
  • Medium rooms (75–144 sq ft): 42–48 inches (e.g., living rooms, kitchens)
  • Large rooms (144+ sq ft): 52–60 inches or larger (e.g., great rooms, dining areas)
• Mounting Height: Ensure at least 7 feet of clearance from the floor to the blade tips. For optimal airflow, install the fan 8–10 inches below the ceiling. Use a downrod for high ceilings (over 9 feet).
• Design Aesthetics: Choose a finish and blade style that matches your interior—modern, rustic, industrial, or tropical. Matte black, brushed nickel, and white finishes are popular for contemporary spaces.
• Light Output Needs: Since E27 sockets support higher-wattage bulbs, consider whether the fan will serve as your primary light source or just ambient lighting.

2. Check the Wattage and Bulb Type Compatibility

The E27 socket supports various bulb types, but not all are equally efficient or suitable for ceiling fans.

• LED Bulbs (Recommended): Energy-efficient, long-lasting (15,000–50,000 hours), and available in multiple color temperatures (2700K warm white to 5000K daylight). Ideal for ceiling fans due to low heat output and minimal vibration sensitivity.
• CFL Bulbs: Moderately efficient but can be bulky and sensitive to frequent on/off cycling. Not ideal for use with dimmers unless specified.
• Incandescent Bulbs: Inefficient and short-lived (750–2,000 hours). Phased out in many regions due to energy regulations.
• Maximum Wattage: Always check the fan’s maximum allowed wattage per socket. Most E27 fixtures support up to 60W incandescent or 15W LED equivalent. Exceeding limits can cause overheating.
• Bulb Shape Options: Globe (G), candle (B), spiral (PL), or reflector (R) bulbs can be used depending on fixture design and desired light spread.

Energy-Saving Tip: Replace traditional bulbs with dimmable LED E27 bulbs to reduce energy consumption by up to 80% while allowing customizable brightness levels.

3. Look for Additional Features and Controls

Modern ceiling fans come with advanced features that enhance convenience and comfort.

• Remote Control: Allows easy adjustment of fan speed and light brightness from anywhere in the room. Some remotes include timer and reverse airflow functions.
• Wall Controller: A permanent switch alternative, often preferred for accessibility and child safety.
• Smart Integration: Wi-Fi or Bluetooth-enabled fans can connect to apps (like Alexa, Google Home, or Apple HomeKit) for voice control and automation.
• Multiple Speed Settings: Typically 3–5 speeds provide flexibility for summer cooling and winter air circulation (via reversible motor).
• Dimmable Light Kit: If lighting is important, choose a model with a built-in dimmer compatible with LED E27 bulbs.

4. Evaluate Quality and Brand Reputation

Investing in a high-quality fan ensures durability, quiet operation, and reliable performance.

• Trusted Brands: Look for manufacturers known for quality craftsmanship, such as Hunter, Minka-Aire, Big Ass Fans, or Fanimation. These brands often offer warranties of 1–10 years.
• Motor Quality: DC motors are quieter and more energy-efficient than AC motors. Sealed motors prevent dust buildup and extend lifespan.
• Noise Level: Read customer reviews to assess how quiet the fan operates at different speeds—especially important for bedrooms and study areas.
• Customer Support: Purchase from retailers or brands with responsive service and accessible replacement parts (like blades, downrods, or remote batteries).
• Certifications: Ensure the fan is UL/ETL listed (in North America) or CE certified (in Europe) for electrical safety compliance.

Feature	Recommended Option	Avoid	Why It Matters
Fan Size	Matched to room size	Oversized or undersized fans	Efficient airflow and balanced appearance
Bulb Type	Dimmable LED E27	Incandescent or non-dimmable CFL	Energy savings and longer lifespan
Controls	Remote + wall switch or smart control	No remote or basic pull-chain only	Convenience and usability
Motor Type	DC motor with reversible function	Basic AC motor without seal	Quiet, efficient year-round use
Safety Certification	UL, ETL, or CE certified	No certification marks	Ensures compliance with safety standards

Installation Tip: If installing in a damp location (like a covered porch or bathroom), choose a ceiling fan rated for "damp" or "wet" locations to prevent corrosion and electrical hazards.

Final Recommendations

• Measure your room before purchasing to select the appropriate fan diameter.
• Opt for LED E27 bulbs to maximize energy efficiency and minimize maintenance.
• Prioritize models with remote controls or smart features for enhanced usability.
• Check warranty terms and customer reviews to assess long-term reliability.
• Ensure compatibility with existing dimmers or smart home systems if applicable.

By carefully evaluating size, lighting compatibility, smart features, and build quality, you can select an E27 ceiling fan that delivers optimal airflow, ambient lighting, and lasting value. Whether upgrading your living space or installing a new fan, making an informed choice ensures years of comfort and style.

E27 Bulb Socket Ceiling Fan – Frequently Asked Questions

Q1: Can I use LED bulbs with an E27 bulb socket ceiling fan?

Yes, absolutely. Most modern LED bulbs are designed with an E27 screw base, making them fully compatible with E27 bulb socket ceiling fans. In fact, using LED bulbs in ceiling fans is highly recommended due to their energy efficiency, long lifespan, and low heat output—important factors for enclosed or semi-enclosed fixtures.

• Dimmable Options: If your ceiling fan has a dimming function, ensure you choose a dimmable LED bulb and confirm compatibility with your dimmer switch.
• Brightness (Lumens): Replace a traditional 60W incandescent bulb with an LED that provides around 800 lumens, typically using only 8–10W of power.
• Color Temperature: Choose between warm white (2700K–3000K) for a cozy ambiance or cool white (4000K–5000K) for brighter, more energizing light—ideal for kitchens or workspaces.
• Vibration Resistance: Ceiling fans generate motion, so opt for LEDs specifically rated for use in fans to avoid premature failure.

Always check your ceiling fan’s maximum recommended wattage and ensure the LED bulb fits within the shade or enclosure without overheating.

Q2: Are E27 bulbs energy efficient?

The energy efficiency of E27 bulbs depends on the technology used. While the E27 refers only to the base type (27mm Edison screw), the actual efficiency comes from the bulb type inserted into the socket.

• LED E27 Bulbs: These are the most energy-efficient option, using up to 85% less energy than traditional incandescent bulbs and lasting 15,000–25,000 hours on average.
• CFL (Compact Fluorescent) E27: Moderately efficient, using about 60–70% less energy than incandescents, but slower to reach full brightness and contain small amounts of mercury.
• Incandescent E27: Highly inefficient—most energy is lost as heat—and typically last only 1,000 hours. These are being phased out in many countries.
• Halogen E27: Slightly more efficient than standard incandescents but still consume more power and generate more heat than LEDs.

For ceiling fans and general home lighting, LED E27 bulbs are the best choice for reducing electricity bills and environmental impact.

Q3: What does E27 mean?

The term E27 refers to the type of screw base used in light bulbs, commonly found in ceiling fans, lamps, and household fixtures. Here's a breakdown:

• E: Stands for "Edison," named after Thomas Edison, who pioneered the incandescent light bulb and the screw-base design.
• 27: Indicates the diameter of the screw base in millimeters—specifically 27 mm across.

E27 is the standard bulb base in many regions, including Europe, Asia, Australia, and parts of Africa. It's also known as the "standard" or "medium" screw base outside North America. Due to its widespread use, a vast range of bulbs—including LED, halogen, and CFL—are available in E27 format, offering flexibility in brightness, color, and smart features.

Q4: What are E27 bulbs used for?

E27 bulbs are one of the most versatile and widely used lighting solutions across residential, commercial, and industrial environments. Their robust design and broad compatibility make them ideal for numerous applications:

• Residential Lighting: Commonly used in ceiling fans, pendant lights, chandeliers, floor and table lamps, kitchen fixtures, and hallway lighting.
• Commercial Spaces: Found in offices, retail stores, restaurants, and hotels where reliable and easily replaceable lighting is essential.
• Industrial Use: Used in warehouses and workshops, especially when paired with durable LED bulbs that can withstand vibrations and temperature variations.
• Outdoor Fixtures: When housed in weatherproof enclosures, E27 LED bulbs can be used in porch lights, garage fixtures, and garden lighting.
• Smart Lighting: Many smart bulbs (Wi-Fi or Bluetooth-enabled) come in E27 format, allowing remote control, color changing, and scheduling via smartphone apps or voice assistants like Alexa or Google Assistant.

Their universal fit and availability in various wattages, shapes (A60, globe, candle, etc.), and technologies make E27 bulbs a go-to choice for both functional and decorative lighting.

Q5: What are E26 bulbs, and can they be used in E27 sockets?

E26 and E27 bulbs are very similar but designed for different electrical standards and geographic regions:

Feature	E26 Bulb	E27 Bulb
Base Diameter	26 mm	27 mm
Primary Region	North America (USA, Canada)	Europe, Asia, Australia, and most other countries
Voltage	120V AC	230–240V AC
Compatibility	Designed for E26 sockets	Designed for E27 sockets

Can They Be Interchanged? In most cases, yes—due to the minimal 1mm difference, E26 and E27 bulbs can often be physically screwed into each other’s sockets. However, there are important considerations:

• Physical Fit: An E26 bulb usually fits safely in an E27 socket, and vice versa, though it may feel slightly loose or tight.
• Voltage Compatibility: Never use a bulb rated for 120V (E26, North American standard) in a 230V circuit (common with E27 systems), as it will burn out instantly and could pose a fire hazard. Always check the voltage rating on the bulb.
• Safety: For long-term use, it's best to match the bulb to the correct regional standard and voltage. Use E27 bulbs in 230V systems and E26 bulbs in 120V systems.

Many dual-voltage LED bulbs are now available that support both 120V and 230V, making them safe for international use when the physical base fits.