Light Bulb

Company Profile

Tongxiang Shineknot Lighting Co,.Ltd was founded in 2010. We have specialized in led lighting field for more than 14 years.

Our factory has about 50 workers and 5 engineers. We can manufacture led tube light, floodlight, high bay, emergency light and so on by 4 production line. All the products need to be inspected and tested before shipping.

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Why Choose Us

Professional Team

Tell us what you need, and we'll analyse your market and provide a comprehensive business solution.
We will collaborate if you have a project tender, to help you win the contract.

High Quality

We will provide services from product design, production, and delivery. Your order will be guaranteed after sale.

Our Certificate

CE, Rohs.

Production Market

Our main export market: The south east Asia, middle east, south pacific and Africa.

What is Light Bulb？

Light Bulb have a very simple structure. At the base, they have two metal contacts, which connect to the ends of an electrical circuit. The metal contacts are attached to two stiff wires, which are attached to a thin metal filament. The filament sits in the middle of the bulb, held up by a glass mount. The wires and the filament are housed in a glass bulb, which is filled with an inert gas, such as argon.

When the bulb is hooked up to a power supply, an electric current flows from one contact to the other, through the wires and the filament.

Electric current in a solid conductor is the mass movement of free electrons from a negatively charged area to a positively charged area.

Benefits of Light Bulb

The Potential To Save Energy
With the power to dim your lights so accessible, it’s even easier to save energy. You can do this manually through the app on your device or you could set up motion sensors. Smart lighting enables the use of motion sensors in every room where either a smart light switch or smart Light Bulb is installed. When a room is unoccupied, you can instruct the bulbs to shut off and only switch on again when motion is detected in the room.

Comfortable Convenience
Controlling your smart lighting is simple. You can lay in bed, sit at your desk at work, or even be on your phone on a remote island and still have access to your lighting. Smart lighting also helps those who have mobility issues or live in a home with loud, creaky stairs and light sleepers. You won’t have to physically go from room to room when you forget to turn the lights off.

Personalized Scenes For Every Occasion
Get even more control of your rooms with smart lighting “scenes.” These scenes can change the colors subtly but still have an impact. If you’re big into reading (or someone else in your family is), changing the shading of the light could ease eye strain.

Set The Mood With Color
Adjusting the color wasn’t always a smart lighting benefit, but it’s available now when you use Light Bulb. It’s not just a gimmick. Changing colors can help when you’re watching a movie, reading, or ready for a nap. Certain colors can reduce eye strain and improve sleep quality. And that’s not all. Blue lighting may improve your mood, especially during winter months when the cloud cover is impenetrable and sunlight is scare.

Add More With Interior Design
You can go the extra level by using the Light Bulb to decorate your home. You can change the decor and appearance of your rooms at the drop of a hat with smart lighting. For family gatherings, parties, and hangouts with the friends, smart lighting makes setting the mood even easier.

Type of Light Bulb

Incandescent: Though still in use, especially in specialty products like Edison-style filament bulbs, these are no longer the go-to for renovations and new construction. People still like them for their color, although LEDs with the right color temperature can match that.

Halogen: These are a form of incandescent. Halogen gas in the bulb allows it to burn longer and brighter than traditional incandescents, increasing efficiency by about 30 percent. They produce a slightly whiter color, though they’re pricier and much hotter to the touch.

Compact fluorescent: CFL bulbs are about 75 percent more efficient than incandescent bulbs, but they contain mercury and are temperature-sensitive.

LED (light emitting diode): Besides their energy efficiency, higher lumen ratings and versatility, all the experts we consulted lauded LED bulbs for their light quality, dimming response and color rendering.

Smart bulbs: Also known as intelligent bulbs, these are programmable LEDs with microchips that can be turned off and on, dimmed and color adjusted remotely from a laptop, tablet or phone.
Solar- and battery-powered bulbs: These LEDs are used in step lighting and outdoor flood lighting with motion and light-sensors.

How Does a Light Bulb Make Light?

First, they require electricity, which is the first step. The second common thing is that electricity can be used to heat things up – think of how warm your computer gets when you use it a lot and you hear the fan whirring to cool it off, or the charger for your parent’s laptop or phone might get warm when it is plugged in.

Older Light Bulb are filament bulbs. A filament is a very, very thin wire, and if you look closely at a Light Bulb like this you can see these wires. The electricity being run through it causes it to heat up (this is another reason we coat electric cables in rubber). The metal used to make the filament glows when it becomes hot, and thus we have light. Because it is so very thin, it heats up really fast, so when we flick the switch the light comes on!

More modern Light Bulb replace the filament with a gas. When heated, these special gases glow and create light.

Manufacturing Process Light Bulb

Selection of Suitable Materials: Explore the materials used for filaments, such as tungsten, carbon, or LED semiconductors, and understand their unique properties that make them ideal for generating light.

Wire Drawing and Annealing Process: Witness the transformation of raw materials into delicate filaments through the wire drawing and annealing process, where precision and controlled heating play a vital role.

Bulb Envelope Production : Glass Types Used and Their Properties: Discover the various types of glass used in bulb envelopes, each with its specific characteristics like heat resistance and transparency, and how they contribute to the overall performance of the bulb.

Glass Melting and Shaping Methods: Uncover the artistry of glass melting and shaping techniques, from blow molding to pressing, as skilled craftsmen mold the molten glass into the desired bulb shape.

Assembling the Bulb: Mounting the Filament within the Bulb: Witness the delicate process of positioning and securing the filament within the bulb, ensuring proper alignment and stability for optimal light emission.

Attaching Base and Support Structures: Learn about the integration of base and support structures, which provide electrical connections and stability to the bulb, creating a solid foundation for its operation.

Sealing and Evacuation: Importance of Maintaining a Vacuum inside the Bulb: Discover why maintaining a vacuum inside the bulb is crucial for the longevity and performance of the filament, preventing oxidation and preserving the luminous output.

Techniques for Sealing the Bulb: Explore the methods used to seal the bulb, ensuring airtight enclosure and long-lasting functionality.

Testing and Quality Control: Electrical Tests to Ensure Performance and Safety: Delve into the electrical tests conducted to ensure that the bulb meets performance standards and operates safely, providing reliable illumination.

Quality Checks for Proper Illumination: Discover the meticulous quality checks performed to guarantee that the bulb emits the desired level of light, ensuring consistent and satisfying illumination.

Structure of Light Bulb

The Light Bulb consists of three main parts which are the filament, the glass bulb, and the base of the Light Bulb.

The filament: It is a coiled thin wire that made of tungsten and it is connected with copper and lead wires that are connected to the base of the lamp.

When the electricity reaches the tungsten filament through copper and lead wires, It causes the glowing of the filament and emits light.

The filament is made of tungsten because it has a high melting point that prevents the melting of the filament at high temperatures. the filament heats up and emits light when the electric current passes through it.

Copper and lead wires allow the electric current to pass from the base of the Light Bulb to the tungsten filament.

The glass bulb: It is made of thin glass and contains one type of inert gases as argon gas instead of air. The glass bulb prevents the air from reaching the filament to protect it from burning.

Argon gas increases the lifetime of the filament of the Light Bulb because it does not burn and does not help in burning as it is inactive gas so, it protects the filament from burning.

The base of the Light Bulb: It carries the Light Bulb in an upright position and it connects the Light Bulb to the electric circuit.

How are Light Bulb made?

There are specialist machines for manufacturing LED bulbs. We will briefly explain the process:

The manufacture of a LED bulb starts with a substratum. The materials used vary from sapphire (for white and cold tones) to gallium arsenide (warm tones).

AlinGaP technology is used for warm tones. Its name comes from the material used in its manufacture: Aluminium, Indium, Gallium and Phosphorus. InGaN technology is used for cold colours including white: Indium, Gallium and Nitrogen. The substratum is covered with different materials to make it resistant and long lasting. This is how the two LED semiconductors are created. Efficiency and quality depend on this process.

This substratum is housed in a wafer that is covered with material. After this, the chips and their corresponding LEDs are distributed. Then the temperature and brightness of the individual LEDs is verified.

The LED then needs to be provided with a base, a dissipater and a diffuser, as well as covering the chips with silicone to protect them.

How Light Bulb Work

The first way is by using the process of thermal radiation in which you heat up an object to a sufficiently hot temperature and it will give off visible light as a result. This is called incandescence. In this type of light production, the atoms and molecules of the heated object move rapidly (at the microscopic level) with random motion, and have kinetic energy as a result. The hotter the object, the faster the atoms and molecules move.

These atoms and molecules consist of charged particles. The interactions between these particles, during their motion, result in charge-acceleration and dipole-oscillation. This results in the electrodynamic generation of coupled electric and magnetic fields, which results in the emission of photons, which are the basic energy unit of electromagnetic radiation, such as visible light.

For thermal radiation sources, the spectrum of electromagnetic radiation consists of the emission of photons over a range of frequencies. This is due to the random nature of the molecule and atomic motion over a range of energy levels. This in turn produces photon emission over a range of frequency levels , with higher frequencies corresponding to higher energy levels. The average energy increases as the temperature of the object increases, with the various energies distributed about this average. In reality, all objects with a temperature above absolute zero emit electromagnetic radiation due to their temperature.

But it is only when the temperature of the object is high enough that we can see this radiation. The minimum temperature of an object necessary for the electromagnetic radiation emitted from it to be visible is about 500 degrees Celsius. At this temperature the object glows a dull red. The color red is the color corresponding to the lowest temperature in the visible spectrum, produced from thermal radiation. The color red has the lowest emission frequency of all the colors in the visible spectrum. This corresponds to the lowest emission energy of all the colors in the visible spectrum.

For temperatures below this the electromagnetic radiation is not visible to the human eye. An infrared camera is necessary to detect electromagnetic radiation (i.e. thermal radiation) whose energy level falls below that of the visible spectrum. The picture below shows hot embers of a fire that are hot enough to glow red.

How to Change a Recessed or Canned Light Bulb

Recessed or canned lights are a popular lighting choice in many homes, and it’s easy to see why. They appeal to all types of décor styles and offer great functionality. But when it’s time to change a burned-out bulb in one of these fixtures, we know it can feel a bit intimidating—especially if you’ve never done it before.

Safety First
Before you begin, it’s crucial to take a couple more steps.

Turn Off the Power
Go to your circuit breaker box or fuse panel, and locate the switch or circuit that controls the recessed light you’re working on. Switch it off in order to cut power to the fixture.

Wait for the Bulb to Cool
If the bulb has been in use recently, give it some time to cool down to avoid burns.

Step 1: Remove the Old Bulb

With the trim out of the way, you can now access the old bulb.
Locate the light within the housing—it may be secured by clips or a twist-lock mechanism.
If there are clips, press them gently to release the bulb. For twist-lock bulbs, turn the bulb counter-clockwise to release it from the socket.
Once your old bulb is loose, carefully remove it from the socket. Be careful—we don’t want to drop it!

Step 2: Install the New Bulb

Now it’s time to replace the old bulb with a new one. (Cue all those jokes about how many people it takes to screw in a Light Bulb.)
Take your new bulb and align it with the socket.
If it’s a twist-lock bulb, insert it into the socket and turn it clockwise until it locks in place. For other types, simply push the bulb into the socket until it’s securely seated.
Ensure the bulb is snug but don’t overtighten it, as this can damage the socket.

Step 3: Restore Power and Test

We’re almost done, so let’s turn that power back on!
Return to your circuit breaker box or fuse panel.
Flip the switch or circuit back on to restore power to the recessed light.
Stand back and turn on the light from the wall switch.
Verify that your new bulb is working correctly and that the fixture is turning on as expected.

Step 4: Enjoy!
Just by following these simple steps, you can have your recessed lighting fixtures shining brightly once again.

Our Factory

We provide LCL and FCL one-stop service. Multi shipping methods are available. DDU or DDP can be choosing according to your demand.We accept many payment methods such as L/C, D/P, T/T, Paypal, Western Union and so on.

FAQ

Q: How do you describe a Light Bulb?

A: A light-bulb produces light from electricity. In addition to lighting a dark space, they can be used to show an electronic device is on, to direct traffic, for heat, and for many other purposes. Billions are in use, some even in outer space. Early people used candles and oil lamps for light.

Q: What is Light Bulb in electrical?

A: An electric light, lamp, or Light Bulb is an electrical component that produces light. It is the most common form of artificial lighting. Lamps usually have a base made of ceramic, metal, glass, or plastic which secures the lamp in the socket of a light fixture, which is often called a "lamp" as well.

Q: What is the difference between electric bulb and Light Bulb?

A: If so there is no difference other than smaller voltage and current. They are just smaller electric lights, and like household electric lights they can be incandescent,flouresent or LED.

Q: Why is the Light Bulb so important?

A: The electric Light Bulb has been called the most important invention since man-made fire. The Light Bulb helped to establish social order after sundown, extended the workday well into the night, and allowed us to navigate and travel safely in the dark. Without the Light Bulb, there would be no nightlife.

Q: What is the science behind the Light Bulb?

A: The bulbs work by sending electricity through a curly tungsten filament. The long, twisting path increases the electrical resistance faced by traveling electrons, heating the filament to some 3000 K. At that temperature, the filament glows with the warm yellowish white light that we've come to expect from Light Bulb.

Q: Why is a bulb called a bulb?

A: Because of its shape, the common incandescent lamp (which is bulb shaped) became commonly referred to as a Light Bulb and for the vast majority of the UK population, that name (like the Hoover) stuck.

Q: What was the original purpose of the Light Bulb?

A: The Light Bulb was invented for the purpose of giving off light. It was designed to produce a more consistent, longer-lasting, higher quality light than that produced by oil or gas lamps (which were the standard means of lighting before electric light).

Q: How did the Light Bulb affect us?

A: More than 150 years ago, inventors began working on a bright idea that would have a dramatic impact on how we use energy in our homes and offices. This invention changed the way we design buildings, increased the length of the average workday and jumpstarted new businesses.

Q: Why do Light Bulbs work?

A: An incandescent bulb works on the principle of incandescence, a general term meaning light produced by heat. In an incandescent type of bulb, an electric current is passed through a thin metal filament, heating the filament until it glows and produces light.

Q: How does a Light Bulb work simple?

A: Essentially, the lightbulb is a very thin filament of hard-to-melt metal – tungsten, usually – encased in a glass bulb filled with inert gases so that the filament doesn't oxidise and disintegrate. The electricity causes the wire to glow and a portion of that energy is turned into light.

Q: How long does a Light Bulb last?

A: How long do Light Bulbs last? Incandescent bulbs generally, have the shortest lifespans. The average incandescent bulb light span is approximately 1,000 hours. Fluorescents are a long-lasting option, running for anywhere from 15,000 to upwards of 20,000 hours.

Q: What was life like before the Light Bulb?

A: Before gas or electric lighting were invented, the greatest Light Bulb indoors usually came from the fixed fire in the grate. Home activities revolved around the hearth, with candlelight or oil lamps providing dim (but mobile) light around the home.

Q: What are some interesting facts about the Light Bulb?

A: Incandescent Light Bulbs – based on technology pioneered by Edison and Joseph Swan almost 150 years ago – lose up to 90% of their energy through heat. LED bulbs (light emitting diodes) are 80% more efficient than incandescent Light Bulbs.

Q: What is the white stuff in a Light Bulb?

A: The white powder that you see inside a fluorescent Light Bulb is called phosphor, which is a substance that emits visible light whenever it absorbs ultra violet energy waves. The phosphor used in a fluorescent Light Bulb is what determines both the color temperature and the color rendering index.

Q: What would life be like without the Light Bulb?

A: Your life would be a lot darker! Traveling or working in darkness can be difficult and dangerous. You might need to wake up early to make the most of the sun's light, then go to bed at sunset. That's what people did before Light Bulbs existed.

Q: What was the main purpose of the Light Bulb?

A: Modern living was greatly enhanced with the invention of the electric lightbulb. It allowed people to see at night with equipment that was much safer than kerosene lamps, for example. Houses could be lighted in the middle of the night as though sunlight were pouring into them.

We're professional Light Bulb manufacturers in China, specialized in providing high quality custom service. If you're going to wholesale bulk high-grade Light Bulb, welcome to get pricelist and quotation from our factory.

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