The first,power failure. Some enterprises a low-power energy-saving lamp nominal power value (ie rated power value) is raised to increase the price.
Second, the initial light effect failed. The index failed, the light efficiency of energy-saving lamps will reduce the service life shorter reach energy-saving, money-saving results.
Third, the mechanical strength failed. The test is whether it will produce for the head part of the loose or fall off, whether consumers will install or replace electric shock accidents.
Fourth, the power factor failed. Some promotional products companies in order to achieve the purpose of the nominal value of the power factor standard was high. The actual test can not be achieved.
Fifth harmonic failed. As the electronic ballast input current harmonics of high power, easy to pollution power and increase the loss of power to other electrical devices cause interference. Must strictly limit the current harmonic content to reduce the harm caused by harmonic pollution power.
Sixth, the color characteristics of failure. Energy saving lamp light color feature is the reduction properties of objects, with good color rendering, color can make objects in the light closer to daylight color, best embodies the characteristics of the original things, the more significant the higher color Show true colors of things. The failure of energy-saving lamp indicators, easy to eye fatigue and other damage caused to consumers.
Friday, 24 December 2010
Thursday, 23 December 2010
Unique Sharing: Tips To Buying Mosquito Net
Unique Sharing: Tips To Buying Mosquito Net: "Mosquitoes can transmit diseases like malaria, yellow fever, many types of encephalitis and dengue. Nearly 600 million people die each year ..."
Tips To Buying Mosquito Net
Mosquitoes can transmit diseases like malaria, yellow fever, many types of encephalitis and dengue. Nearly 600 million people die each year from diseases transmitted by mosquitoes. What can I do to prevent bites?
Mosquito net is important to avoid mosquito bites an insect that transmits infectious diseases. Comes in a variety of shapes, color and effects. Here are some guidelines for you to choose the perfect mosquito net.
1) Size and shape: The size of the network must be comprehensive. It must be large enough to cover your entire body while you sleep. The fly must provide the necessary air circulation. A mosquito net with holes of 1.2 mm x 1.2 mm is the most used and recommended.
2) Material: There are two most common materials used in mosquito net - polyester and cotton. Nets is lightweight polyester that could be used for camping and other travel needs. Dura networks rather than cotton because cotton is not water resistant and weighs more when wet. But cotton mosquito nets could provide a more comfortable rest when used outdoors. Both types of fabric are available in different sizes and thickness of wire used.
For a fly more efficiently, we recommend purchasing a network that has been sprayed with insecticides of high quality. If the networks are pre-treated with insecticide, mosquito net repellent might be useful for at least a year, depending on the heat and exposure to rain. If insecticides are no longer there, you can always buy at your local store.
3) Variety: Nets can be purchased at a number of styles and form of your choice. Here are some of the basic types of nets available in stores.
* Head and body networks: This type of networks are often used outdoors in the camping and treatment of the swarms of mosquitoes. Networks are available to cover any body part or the whole body itself.
* Internal Networking: internal networks are used in insect repellent in the house. This is to protect your children and yourself from insect stings in the future. It is used in the detection of doors, windows, curtains, and many more.
* Network Equipment: Special equipment is produced with a net. Samples of this are a network of baby stroller, bed wards and many more.
Now that you know how to buy the perfect mosquito net to you, invest now and experience the protection of their family to support.
Tuesday, 30 November 2010
What criteria to select a reasonable LED drive
Linear regulator to convert the voltage will face power problem, switch-mode noise is a problem, LED driver to choose which conversion depends on what kind of application.
What kind of conversion
Through the linear regulator to convert the voltage will face power problems, this approach is more suitable for the need to avoid the noise (such as car audio) and therefore can not use switch mode converter circuits. The switch means is characterized by very high conversion efficiency, but it also has noise problems, so what choice of conversion depends on the application.
Typically, the charge pump drive the efficiency of the input voltage changes, the voltage range of applications, their efficiency is relatively low; while relatively small in the voltage range of applications, only when the input and output voltage multiple relationship between the whole, it can achieve maximum efficiency, but in the practical application of battery-powered difficult to achieve. The other hand, the conversion efficiency is not affected by inductive voltage interfere with, the application limit is less than the charge pump, so the inductor current mode converter to use more.
How to evaluate the performance
Objective that the performance evaluation hb led driver ic point of view according to different applications, can not be generalized. Applications such as decorative lighting rgb color change of control requires high performance to be the main target of this, and in monochrome applications do not require this. Another example is the application of a small space requirements of the heat dissipation capacity; automotive lighting applications require both replace the original circuit system with smooth combination of performance also requires high reliability; in nb like displays, led multi-string balanced brightness control requirements for each one on the road driving ic have precise control of current, such as the maxim of the product control precision can reach 3%; projector applications require high efficiency driver circuit, the ability to quickly adjust the brightness and thermal protection capacity; in alternative applications, the performance is more reflected in the program rather than a single drive ic on. In general, device integration, control the quantity, response speed, fault diagnosis, evaluation of heat are all properties of reference.
Typically, the high level of integration aimed at improving performance, but at high power, highly integrated high current will increase to meet the chip area, but also in increasing the cost of the problems facing the heat, so, how to balance between power and integration The relationship is driven issues facing ic design. Driver ic chip technology to meet the cost of the improvement at the same time, improved cooling package to solve the problem.
What kind of conversion
Through the linear regulator to convert the voltage will face power problems, this approach is more suitable for the need to avoid the noise (such as car audio) and therefore can not use switch mode converter circuits. The switch means is characterized by very high conversion efficiency, but it also has noise problems, so what choice of conversion depends on the application.
Typically, the charge pump drive the efficiency of the input voltage changes, the voltage range of applications, their efficiency is relatively low; while relatively small in the voltage range of applications, only when the input and output voltage multiple relationship between the whole, it can achieve maximum efficiency, but in the practical application of battery-powered difficult to achieve. The other hand, the conversion efficiency is not affected by inductive voltage interfere with, the application limit is less than the charge pump, so the inductor current mode converter to use more.
How to evaluate the performance
Objective that the performance evaluation hb led driver ic point of view according to different applications, can not be generalized. Applications such as decorative lighting rgb color change of control requires high performance to be the main target of this, and in monochrome applications do not require this. Another example is the application of a small space requirements of the heat dissipation capacity; automotive lighting applications require both replace the original circuit system with smooth combination of performance also requires high reliability; in nb like displays, led multi-string balanced brightness control requirements for each one on the road driving ic have precise control of current, such as the maxim of the product control precision can reach 3%; projector applications require high efficiency driver circuit, the ability to quickly adjust the brightness and thermal protection capacity; in alternative applications, the performance is more reflected in the program rather than a single drive ic on. In general, device integration, control the quantity, response speed, fault diagnosis, evaluation of heat are all properties of reference.
Typically, the high level of integration aimed at improving performance, but at high power, highly integrated high current will increase to meet the chip area, but also in increasing the cost of the problems facing the heat, so, how to balance between power and integration The relationship is driven issues facing ic design. Driver ic chip technology to meet the cost of the improvement at the same time, improved cooling package to solve the problem.
What criteria to select a reasonable LED drive
Linear regulator to convert the voltage will face power problem, switch-mode noise is a problem, LED driver to choose which conversion depends on what kind of application.
What kind of conversion
Through the linear regulator to convert the voltage will face power problems, this approach is more suitable for the need to avoid the noise (such as car audio) and therefore can not use switch mode converter circuits. The switch means is characterized by very high conversion efficiency, but it also has noise problems, so what choice of conversion depends on the application.
Typically, the charge pump drive the efficiency of the input voltage changes, the voltage range of applications, their efficiency is relatively low; while relatively small in the voltage range of applications, only when the input and output voltage multiple relationship between the whole, it can achieve maximum efficiency, but in the practical application of battery-powered difficult to achieve. The other hand, the conversion efficiency is not affected by inductive voltage interfere with, the application limit is less than the charge pump, so the inductor current mode converter to use more.
How to evaluate the performance
Objective that the performance evaluation hb led driver ic point of view according to different applications, can not be generalized. Applications such as decorative lighting rgb color change of control requires high performance to be the main target of this, and in monochrome applications do not require this. Another example is the application of a small space requirements of the heat dissipation capacity; automotive lighting applications require both replace the original circuit system with smooth combination of performance also requires high reliability; in nb like displays, led multi-string balanced brightness control requirements for each one on the road driving ic have precise control of current, such as the maxim of the product control precision can reach 3%; projector applications require high efficiency driver circuit, the ability to quickly adjust the brightness and thermal protection capacity; in alternative applications, the performance is more reflected in the program rather than a single drive ic on. In general, device integration, control the quantity, response speed, fault diagnosis, evaluation of heat are all properties of reference.
Typically, the high level of integration aimed at improving performance, but at high power, highly integrated high current will increase to meet the chip area, but also in increasing the cost of the problems facing the heat, so, how to balance between power and integration The relationship is driven issues facing ic design. Driver ic chip technology to meet the cost of the improvement at the same time, improved cooling package to solve the problem.
What kind of conversion
Through the linear regulator to convert the voltage will face power problems, this approach is more suitable for the need to avoid the noise (such as car audio) and therefore can not use switch mode converter circuits. The switch means is characterized by very high conversion efficiency, but it also has noise problems, so what choice of conversion depends on the application.
Typically, the charge pump drive the efficiency of the input voltage changes, the voltage range of applications, their efficiency is relatively low; while relatively small in the voltage range of applications, only when the input and output voltage multiple relationship between the whole, it can achieve maximum efficiency, but in the practical application of battery-powered difficult to achieve. The other hand, the conversion efficiency is not affected by inductive voltage interfere with, the application limit is less than the charge pump, so the inductor current mode converter to use more.
How to evaluate the performance
Objective that the performance evaluation hb led driver ic point of view according to different applications, can not be generalized. Applications such as decorative lighting rgb color change of control requires high performance to be the main target of this, and in monochrome applications do not require this. Another example is the application of a small space requirements of the heat dissipation capacity; automotive lighting applications require both replace the original circuit system with smooth combination of performance also requires high reliability; in nb like displays, led multi-string balanced brightness control requirements for each one on the road driving ic have precise control of current, such as the maxim of the product control precision can reach 3%; projector applications require high efficiency driver circuit, the ability to quickly adjust the brightness and thermal protection capacity; in alternative applications, the performance is more reflected in the program rather than a single drive ic on. In general, device integration, control the quantity, response speed, fault diagnosis, evaluation of heat are all properties of reference.
Typically, the high level of integration aimed at improving performance, but at high power, highly integrated high current will increase to meet the chip area, but also in increasing the cost of the problems facing the heat, so, how to balance between power and integration The relationship is driven issues facing ic design. Driver ic chip technology to meet the cost of the improvement at the same time, improved cooling package to solve the problem.
An often overlooked advantage of LED
We know that mercury is an extremely toxic substance, however, almost all high-power light sources currently used in all contain mercury, the mercury content of various power sources as follows:
The low boiling point of mercury, can be evaporated at room temperature. Waste disposal of a broken light immediately after the distribution of mercury vapor into the surrounding, and instantly make the mercury in ambient air concentration of 10-20 mg / cubic meter, exceeding the state's maximum allowable mercury concentration in air (0.01 mg / cubic m) of the 1000 to 2000 times. , According to Stanford University research on mercury that 1 mg of mercury pollution 5454.5 kg of drinking water is sufficient to make it reach the safety standards for drinking water. Mercury in air and water pollution caused by very serious consequences, are aquatic food will be generated after the CH3Hg, this is a highly toxic material, as long as half Ershao can cause human doom. Mercury itself will damage the central nervous system, reproductive defects caused by the effect it is very serious, mercury can damage the kidneys and liver, under conditions in sufficient doses can even lead to death.Mercury can be in different ways in the soil, water, and even the atmosphere, the food chain transfer. Therefore, persistence, and easy mobility and a high degree of bioaccumulation, making the mercury into the world one of the most interesting environmental pollutants. The worst in history to be mercury poisoning Minamata disease events in Japan, and it was not the Minamata Bay mercury pollution in water is many hundreds of people died. Now the Japanese government learned a lesson, requiring all of the waste fluorescent lamps treatment of toxic substances must be carried out, requiring people to buy ordinary fluorescent required to pay twice as much advance the toxic substance handling charges.
Recently, the Chinese government issued 100 million free energy-saving lamps, although recent foreign special energy-saving lamps, low mercury content of mercury can be reduced to 5mg or less (do not know the Chinese government is not the case issued energy-saving lamps, low mercury), but no did not reduce its hazardous nature, such as an energy-saving lamps, low mercury content of mercury is enough to 27.27 tons of drinking water pollution. The 100 million energy-saving lamps sufficient to 2.7 billion tons of polluted water, equivalent to the National People's amount of drinking water for years。
| 26mm fluorescent lamp | Metal halide | HPS | Energy saving lamp | All led |
| 25-45mg | 20-25mg | 12-14mg | 10-15mg | 0 |
The low boiling point of mercury, can be evaporated at room temperature. Waste disposal of a broken light immediately after the distribution of mercury vapor into the surrounding, and instantly make the mercury in ambient air concentration of 10-20 mg / cubic meter, exceeding the state's maximum allowable mercury concentration in air (0.01 mg / cubic m) of the 1000 to 2000 times. , According to Stanford University research on mercury that 1 mg of mercury pollution 5454.5 kg of drinking water is sufficient to make it reach the safety standards for drinking water. Mercury in air and water pollution caused by very serious consequences, are aquatic food will be generated after the CH3Hg, this is a highly toxic material, as long as half Ershao can cause human doom. Mercury itself will damage the central nervous system, reproductive defects caused by the effect it is very serious, mercury can damage the kidneys and liver, under conditions in sufficient doses can even lead to death.Mercury can be in different ways in the soil, water, and even the atmosphere, the food chain transfer. Therefore, persistence, and easy mobility and a high degree of bioaccumulation, making the mercury into the world one of the most interesting environmental pollutants. The worst in history to be mercury poisoning Minamata disease events in Japan, and it was not the Minamata Bay mercury pollution in water is many hundreds of people died. Now the Japanese government learned a lesson, requiring all of the waste fluorescent lamps treatment of toxic substances must be carried out, requiring people to buy ordinary fluorescent required to pay twice as much advance the toxic substance handling charges.
Recently, the Chinese government issued 100 million free energy-saving lamps, although recent foreign special energy-saving lamps, low mercury content of mercury can be reduced to 5mg or less (do not know the Chinese government is not the case issued energy-saving lamps, low mercury), but no did not reduce its hazardous nature, such as an energy-saving lamps, low mercury content of mercury is enough to 27.27 tons of drinking water pollution. The 100 million energy-saving lamps sufficient to 2.7 billion tons of polluted water, equivalent to the National People's amount of drinking water for years。
Monday, 29 November 2010
Something About Compact Fluorescent Lamps
Compact fluorescent lamps (CFL)
CFLs are becoming increasingly popular in recent years. Its light output ratio of energy consumption is very high compared to their incandescent counterparts waste. Most people are willing to spend extra money on these bulbs only for his life alone. This article is a guide to the understanding of compact fluorescent lamps and why you should use at home to save energy.
What are CFLs and how they work?
A CFL uses a gas-filled tube to excite mercury vapor emissions from short wavelength light. Electromagnetic ballasts or electronic tube connected to regulate the amount of electric current flowing through the device. Former CFL uses electromagnetic ballast, but only use CFL ballast new mail. The switch to electronic ballasts in the last 10 years has been the main reason for the reduction in the cost of CFLs. Without going into technical details, we know that a compact fluorescent lamp is a relatively complex device compared to an incandescent lamp (which is just a tungsten wire heated by electric current). CFLs are capable of operating with AC power systems and DC, making them ideal for 'off-network and remote applications.
Energy Saving
Tube filled with mercury gas emits light energy at a frequency of visible light very specific (usually described in the package). Since only emits energy in the visible light spectrum, the energy is not wasted on the frequencies that the human eye can not see. This is the case with incandescent bulbs, where most of the radiated energy is lost as heat. So emits only useful energy (visible light), compact fluorescent lamps are capable of significantly reducing the amount of energy used in the profits.
A 15W CFL emits the same amount of visible light a 60W incandescent bulb. This means that you will use about a quarter of the energy for the same amount of light! This is a massive energy savings and can save you hundreds of dollars each month.
For example. If you have a family home that uses 8, 60W bulbs. Now let's say the lights are on average 40% of the time. If you are paying 12cents / kWh (U.S. The average cost of electricity). Then, you have to pay $ 142 a month just for the lights with incandescent bulbs. This is reduced to $ 35 a month by making the switch to 15W CFL. That's a savings of $ 107 in a typical U.S. household.
Lifespan
Because CFLs do not produce too much heat as incandescent bulbs, which take longer to burn and die. Will last approximately 10 times with a lifespan of about 10 000 hours.
Removal and Security
There are some safety concerns associated with CFLs, but if managed properly, pose no risk to you or your family. Since CFLs contain mercury vapor is very important that the bulbs are broken or thrown away. When one stops working CFL set aside until they accumulate more of them. Then down to a local station waste disposal. They have a program to safely recycle the CFL and most of the time this service is completely free.
Conclusion
There is no doubt that compact fluorescent lamps replaced all incandescent bulbs in the near future. Many countries have already made a mandatory requirement of the home. If you are looking to save energy at home this is a big step that requires very little effort. So get rid of the old incandescent bulbs and get to the store and get some compact fluorescent lamps. The extra amount spent on these lamps will save you hundreds of dollars and help save our planet.
T2 CFL,T3 CFL,Reflector CFL
CFLs are becoming increasingly popular in recent years. Its light output ratio of energy consumption is very high compared to their incandescent counterparts waste. Most people are willing to spend extra money on these bulbs only for his life alone. This article is a guide to the understanding of compact fluorescent lamps and why you should use at home to save energy.
What are CFLs and how they work?
A CFL uses a gas-filled tube to excite mercury vapor emissions from short wavelength light. Electromagnetic ballasts or electronic tube connected to regulate the amount of electric current flowing through the device. Former CFL uses electromagnetic ballast, but only use CFL ballast new mail. The switch to electronic ballasts in the last 10 years has been the main reason for the reduction in the cost of CFLs. Without going into technical details, we know that a compact fluorescent lamp is a relatively complex device compared to an incandescent lamp (which is just a tungsten wire heated by electric current). CFLs are capable of operating with AC power systems and DC, making them ideal for 'off-network and remote applications.
Energy Saving
Tube filled with mercury gas emits light energy at a frequency of visible light very specific (usually described in the package). Since only emits energy in the visible light spectrum, the energy is not wasted on the frequencies that the human eye can not see. This is the case with incandescent bulbs, where most of the radiated energy is lost as heat. So emits only useful energy (visible light), compact fluorescent lamps are capable of significantly reducing the amount of energy used in the profits.
A 15W CFL emits the same amount of visible light a 60W incandescent bulb. This means that you will use about a quarter of the energy for the same amount of light! This is a massive energy savings and can save you hundreds of dollars each month.
For example. If you have a family home that uses 8, 60W bulbs. Now let's say the lights are on average 40% of the time. If you are paying 12cents / kWh (U.S. The average cost of electricity). Then, you have to pay $ 142 a month just for the lights with incandescent bulbs. This is reduced to $ 35 a month by making the switch to 15W CFL. That's a savings of $ 107 in a typical U.S. household.
Lifespan
Because CFLs do not produce too much heat as incandescent bulbs, which take longer to burn and die. Will last approximately 10 times with a lifespan of about 10 000 hours.
Removal and Security
There are some safety concerns associated with CFLs, but if managed properly, pose no risk to you or your family. Since CFLs contain mercury vapor is very important that the bulbs are broken or thrown away. When one stops working CFL set aside until they accumulate more of them. Then down to a local station waste disposal. They have a program to safely recycle the CFL and most of the time this service is completely free.
Conclusion
There is no doubt that compact fluorescent lamps replaced all incandescent bulbs in the near future. Many countries have already made a mandatory requirement of the home. If you are looking to save energy at home this is a big step that requires very little effort. So get rid of the old incandescent bulbs and get to the store and get some compact fluorescent lamps. The extra amount spent on these lamps will save you hundreds of dollars and help save our planet.
T2 CFL,T3 CFL,Reflector CFL
Subscribe to:
Posts (Atom)