E40 lamp holder

Full range of high quality E40 ceramic lamp holders. Our range includes many types of E40 E39 light sockets with mounting brackets, leads, stainless steel, etc. Most items carry full approvals of UL, SAA and CE.

Custom-made E40 lamp holders are our strength, customizing a lamp holder can meet your particular lighting needs. So, feel free to contact us!

E40 porcelain lamp holder ceramic light bulb sockets


All You Need to Know About E40 Lamp Holder

An E40 porcelain lamp holder is a type of electrical socket that is commonly used to hold and connect light bulbs in high wattage applications.

The E40 designation refers to the size of the screw base of the bulb, which is 40 millimeters in diameter.

  • E40 Socket Features:
    Quality: Brass / Nickel-plated
  • Properties Density: 3.6 g/cm2
  • Water absorption: 0
  • Sintering temperature:1680 ℃
  • Physical property Hardness: 1500 HV
  • Rupture strength: 3000 Kg/cm2
  • Pressive strength: 25000 Kg/cm2
  • Thermal property Maximum service temperature: 1450 ℃
  • Thermal shock resistance: 220 T (℃)
  • Thermal conductivity: 25– 14 W/m. K (2 5–300 ℃))
E40 Edison Screw Ceramic Lamp Holder Socket with Mounting Bracket

E40 lamp holder customize

E40 ceramic lamp socket is an essential component in many lighting fixtures, providing a stable and secure platform for holding light bulbs. It is designed to support high-wattage bulbs, making it ideal for use in industrial and commercial settings.

  1. One of the advantages of customizing E40 ceramic lamp holders is the ability to select materials that are suited to specific environments. For example, in high-temperature environments, it may be necessary to use ceramic materials that can withstand extreme temperatures without cracking or breaking. 
  2. Another benefit of customizing E40 ceramic lamp holders is the ability to modify the shape and size of the holder to suit specific requirements.


In some cases, a standard E40 ceramic lamp holder may not fit within a particular fixture, or it may not provide the optimal positioning for the light bulb. Customizing the holder allows for the creation of a custom shape or size that provides the necessary functionality while maintaining the required safety and stability.

E40 lamp holder factory

The E40 porcelain lamp holder is a versatile and reliable option for connecting high wattage light bulbs in a range of applications.

The porcelain light sockets construction provides excellent heat resistance and durability, making it a popular choice for industrial and commercial settings.

The screw-type socket allows for easy installation and replacement of bulbs, making maintenance simple and hassle-free.

It’s important to use the correct type of socket for the corresponding light bulb to ensure safety and compatibility.

JAMES Manufacturer of standard & custom sockets including Porcelain light socketsBakelite lamp socket, Brass socketsLight bulb adapter and Pendant light socket.

CE, SAA, UL certificates of light bulb sockets
E40 porcelain lamp holder ceramic light bulb sockets

Why Choose Our E40 Lamp Holder?

We're Trusted By The Best

You can get the best quality lamp sockets, because we supply many big brands, The customized lamp holders can be made if you don’t like what we have.
Our outstanding service is a great beginning of your easy import, dramatically improve your product margins.


▶We have over 30 years’ experience in design and manufacturing of E40 lamp holders.
▶Our factory has been accredited to CCC and ISO9000 approval.
▶We specialize E40 lamp holders from raw materials to finished products.
▶Facilities and capabilities to design and develop new products to meet OEM project requirements.
▶We have a well-equipped in-house engineering tool shop and testing laboratory.
▶We follow the latest changes in published safety standards and European regulations.

▶Customizing E40 ceramic lamp holders can provide unique features and benefits, making them suitable for specific lighting applications.

Stocking programs provided. SAA, CE & UL approved. On-time delivery.



What is an E40 porcelain lamp holder used for?

An E40 porcelain lamp holder is used to secure and connect a light bulb to a power source in commercial or industrial settings.

What materials are E40 ceramic lamp sockets made of?

E40 ceramic light bulb sockets are typically made of high-quality porcelain, which provides excellent heat resistance and electrical insulation.

Can an E40 porcelain lamp socket be used with LED bulbs?

Yes, E40 porcelain lamp sockets can be used with LED bulbs as long as the wattage and voltage of the bulb is compatible with the holder.

Are E40 ceramic light bulb sockets weather-resistant?

It depends on the specific product. Some E40 porcelain light sockets are weather-resistant and can be used in outdoor settings, while others are designed for indoor use only.

Can an E40 porcelain lamp holder be used with a dimmer switch?

Yes, E40 porcelain lamp holders can be used with a dimmer switch as long as the bulb being used is compatible with the switch.

What is the maximum wattage that an E40 ceramic light socket can handle?

The maximum wattage that an E40 ceramic light bulb socket can handle varies depending on the specific product. 

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URL : www.lightbulbsocket.com
Add: NO.77, Shanli Road, Mingqing, Fuzhou, China.

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