How to extend the life of the bulb is up to you at 3Q

Although the bulb is the only consumable for the projector, it is relatively expensive (accounting for almost a quarter of the price of low-end products), and according to normal use, it will be replaced once every 2 or 3 years, so it has been regarded as one of the main obstacles to entering the home market, and the service life of the bulb has become a parameter that is often hyped by businesses! Since the projector usually has ECO mode (i.e. eco mode, saving mode), the power of the projector running in this mode is only about 70 when it is working normally, naturally, the brightness of the lamp will be reduced accordingly, and the life span will be extended accordingly. A bulb with a normal working life of 2000 hours can usually last up to 3000 hours if it is operated in ECO mode.

In addition, the life of the bulb ends at the moment when the brightness of the bulb begins to decay significantly, that is, the bulb that has been used for more than the nominal life is not unusable, but the display effect is greatly reduced, and there is a difference between "how long the bulb lasts" and "the normal life of the bulb". Most brands of projectors will remind the user to replace the lamp when the lamp is about to be used for the set time, and if it is forced to use it for 2000 hours, the projector will automatically cut off the power supply. However, in order to obtain the selling point of long life, some manufacturers adopt the method of resetting and clearing the lamp timer, and obtain a longer service time, even reaching more than 3000 hours and still in use.

Overdue service is not only ineffective, but also very prone to the occurrence of bulb explosion. It is true that home users are more sensitive to the cost of later use, and long-life light bulbs are indeed favored by consumers, but this should not be a reason for merchants to change their concepts. Is it because there is no unified nominal standard that the service life in ECO mode can be deliberately understood by consumers as the service life in normal mode?

When the bulb leaves the factory, in order to prevent the chemical reaction between the filament and the oxygen in the oxygen, the bulb is already filled with inert gas, and the life of the bulb has two main determining factors, the first is the bad of the filament, and the second is the content of the inert gas in the bulb and the sealing, in order to prolong the service life of the bulb, you can turn off the power in time when you don't need to use it, don't touch the bulb, and keep the ventilation. Beg.

It depends on what kind of bulb it is

Analysis 1. The life of LED bulbs.

Theoretically, LEDs (single-finger light-emitting diodes) can have a lifetime of 100,000 hours.

However, after being assembled into a luminaire, it is also related to the life of other electronic components. That is, the life of LED lamps and lanterns may fail if they do not reach 100,000 hours, not necessarily the problem of the LED itself, but the chip of the power supply, electrolytic capacitors and other components that have problems first.

Then there are many LED manufacturers now, and the quality is uneven.

2. The service life of energy-saving lamps.

The most common are 2000 hours, 3000 hours, 5000 hours, 6000-8000 hours, and 10000-12000 hours.

2. General incandescent bulbs.

The rated service life is about 5000 hours. However, the general incandescent bulb does not necessarily stop lighting when it reaches the service life, and the life of the general incandescent bulb is longer than the set 5000 hours

Filament, hundreds to thousands of hours, the actual depends on its heat, that is, power consumption, as well as the environment, low heat life can be longer, and then if there is soil on the glass, it will affect the heat dissipation so that the internal temperature is too high The filament is fused, and it will be wasted, the environment, used in the open air, because the bulb is hot, if it rains at that time, the rain will cool down instantly, and the glass will crack if the high temperature is instantaneously cooled, and the bulb will be scrapped instantly without a glass cover.

When the electric bulb is turned on, the current passes through the tungsten filament, and emits high heat and high temperature, a small part of the tungsten on the surface of the filament becomes vapor and volatilizes, touching the inner wall of the glass of the bulb, it condenses on the surface and becomes a thin gray-black layer that obstructs the light. After a long time, the inside of the light bulb will become black, when you see the bulb black, you can know that the life of the bulb is not long, because the tungsten filament is more and more volatile and thinner, and finally it is burned out, and the bulb is not lit.

Generally 2,500 to 3,500 hours. Precautions for the use of bulbs:

1. Avoid frequent start-ups. The life of the bulb is generally not less than 3000 hours, and the condition is that it is continuously ignited for 3 hours each start. With the length of continuous ignition time for each start-up, the life of the lamp is also relatively longer or shorter.

Priming accelerates the depletion of electron-emitting substances on the filament.

2. High or low power supply voltage will also shorten the service life of the bulb. When the voltage is higher than the normal working voltage of the bulb, the current flowing through the lamp will undoubtedly increase, the loss of the filament will be accelerated, and the life of the lamp will be shortened. However, if the voltage is lower than the normal operating voltage of the bulb, it will also shorten the life of the lamp.

Because the preheating temperature of the filament is low at this time, it is difficult to start, and the frequent flashing makes the loss of the filament too large.

1. Carefully read the instructions for the use of lamps and lanterns: after purchasing LED lamps, do not rush to install, you can first check the product description, understand its device and design, understand its use, installation methods, and then install.

2. Minimize the number of switches: Do not turn on and off the LED lights frequently when in use. This is because the LED lamp is frequently switched on, and the current it passes through is larger, which will cause the temperature of the filament to rise sharply, so that the LED lamp is prone to short circuit, burning and other problems, and also greatly shortens its service life.

3. Do not change the structure and components of the lamp at will: in daily use, do not disassemble and modify the spare parts of the LED lamp at will, and do not change its installation position at will after the LED lamp is installed, so as not to cause damage to the internal circuits or the problem of poor wire contact.

4. Replace the lamp in time: after the use of the LED lamp, its internal spare parts will be damaged, we need to regularly check the use of the LED lamp, if the LED lamp is faulty, it is necessary to eliminate the fault in time and replace the damaged spare parts in time.

The light bulb, a source of light that emits light and heat through electricity, was invented by Henri Goebbels (Edison actually found the right material, i.e. invented the practical incandescent lamp, and the light bulb appeared as early as 1854).

The most common service life of energy-saving lamps is 2000 hours, 3000 hours, 5000 hours, 6000-8000 hours, and 10000-12000 hours.

Of course, the longer it can be used, the better the quality. It depends on your own choice, whether you need to live longer, or you don't need to live too long, of course, there are corresponding high and low.

The most common service life of energy-saving lamps is 2000 hours, 3000 hours, 5000 hours, 6000-8000 hours, and 10000-12000 hours.

Of course, the longer it can be used, the better the quality. It depends on your own choice, whether you need to live longer, or you don't need to live too long, of course, there are corresponding high and low. According to the requirements of the national standard, the average life should reach more than 5,000 hours, which is 5 times the life of ordinary incandescent bulbs.

In the case of incandescent lamps, it is obvious that the bulb will last longer if it is always on.

Because the temperature of tungsten filament is very high when the bulb is on, there is a small amount of sublimation, but because the temperature difference and pressure difference in the bulb (the place near the tungsten filament is higher) is not too large, there is a small amount of dynamic equilibrium between the sublimation and condensation of tungsten, although the tungsten filament will become thinner and thinner, but the speed of fineness is not too large.

However, when the light is turned off, the temperature of the bulb surface drops rapidly, and a large amount of tungsten begins to condense on the surface of the bulb instead of returning to the tungsten filament as in the case of the bulb on. This speeds up the refinement of the tungsten filament.

Therefore, often turn on and off the bulb, the bulb is easy to break, and the bulb is generally used in parallel, so p=u r, as the bulb filament becomes thinner and thinner, the bulb resistance is getting bigger and bigger, and the bulb will be darker and darker at the household voltage of 220V.

You can observe a phenomenon: there will be a black layer on the glass of the bulb that is often opened and closed quickly, which is the reason for the condensation of tungsten on the inner surface of the bulb.

Therefore, in order to increase the service life of the bulb, there is iodine filling inside the bulb, because at about 3000, tungsten iodide decomposes: 2wi3=2w+3i2; At 250, tungsten iodide is combined, 2w+3i2=2wi3. In other words, iodine can act as a porter in the bulb, because the surface temperature of the bulb is around 250 when it is on (if the rated power is small, such as a flashlight bulb, it will not reach this temperature, so the small bulb will not be filled with iodine). , and the temperature near the filament can be as high as 3000. — This is the principle of "iodine-tungsten lamp".

In order to make the bulb brighter, the bulb can be filled with sodium, and the sodium will continue to excite and deexcited at high temperatures, which can emit sodium yellow light and increase the effective brightness of the bulb. Generally, this is used more on old-fashioned searchlights.

The life span of the bulb is related to the number of switches, voltage, room temperature, quality of the bulb, etc. Seeing a dead light bulb is as hard as seeing a pedestrian run over by a car in front of you on the street.

** Bulbs generally have a life of 2000 hours, 4 hours per day, and should be made for more than a year.

Sometimes the filament will be burned out if the electricity is used for too long, and the bulb can be used again after taking it off and shaking it twice, so you don't have to worry that the bulb will not last long, and the general ordinary incandescent lamp can be used for a year.

Hello! An energy-saving bulb should be used for more than one year, and the seller should bear this shelf life. If it burns out frequently, the reasons are as follows:

One, the quality of the bulb is not good;

Second, the environment is too humid;

Third, frequent use, that is, many times of switching and high frequency of use. It is recommended to try a different brand of energy-saving light bulb, which may take a long time!

The old light bulb that has been made ancient used by every household was once used, and it was cheap and loved by the people.

But there are too many defects of the light bulb: short life, hot, power consumption, low power. An ordinary.

Forty or fifty watt bulbs, because of their thinner filament, can be used for three months at best, and will burn out the filament; And a 100-watt bulb, with a thick filament, can be used for two or three more months, and eventually it will burn out.

As a lighting appliance, the subsequent fluorescent tubes and energy-saving lamps have greatly increased their service life.

At present, the best quality lighting on the market is LED tubes, which are guaranteed for one year. And it is not hot, the brightness is excellent, the appearance is ever-changing, and it is more suitable for colorful life!

A few years depends on how long you use it.