LED Flashlight
Click on photo to enlarge.
Most of us have experienced embarrassing, but not our flashlights, generally less than once. Even if it is useful for backup and change can become a problem in the dark. How to find an attractive bulb flashlight has the momentum, or at least tens of thousands of hours of work?
Second, battery life, or lack thereof. ? If not, no light bulbs, batteries occurs gradually. ? In light gray, but most of the time you need. ? Replace the batteries in the dark, even if you have them, usually a process. How attractive would be to find a battery of flashlight for the tens of thousands of hours or hundreds of hours?
Light-emitting diodes
We talk about the led flashlights, the use of LED (light emitting diodes) instead of traditional bulbs. Yes, it's the same thing you see light in electronic devices, digital signs, cheap keychain lights, and for many years. ? This problem, although the light-emitting diodes spectrum of colors, but they should not know - until recently. ? Other colors, a small enough light to read a chart or your night vision is not diminished but, in general, the effective use of them to be much to be desired. Some people try, with a mixture of colors, have different effects, but not very elegant solution.
In early 1990, Shuji Nakamura of Nichia Chemical (now the Group of Asian States), for the first viable white LED (read: his greatest success in this area is one of the most important and interesting interviews It opposed the development of this land, and Other Equipment interviews Scientific American). ? Indeed, the long-term proposal Hite lights? If it is not technically correct. ? Blu-Ray of light-emitting diodes, but with low fluorescent coated blue, white light.
In part, this was due in two phases, the first example of this is quite dark. ? They are also very expensive, because most new technologies developed. Recently, they have always brilliant and beautiful, but not cheap, at least more affordable. Although there is still much higher than other comparable LED Dimmer size and energy consumption, they are bright white LED flashlight reality, at least in some applications. The brightness also depends on the angle of the LED is a reflection of this point. The emergence of a narrow angle (20 degrees) of the LEDs is also more convenient.
Not all the white LEDs are identical. If they are LEDs, particularly white LEDs, there are significant changes, two of the brightness and color, sometimes a problem, of course, in our test. Like pearls, LED, May it be that in this case, the output, and color. One consequence is that it is clear that you want to know and make them more of a flower if the price is more expensive, these LEDs. ? These high-end products more expensive.
In each case, the blue and white, a very different type of bulb filament lamp. No matter what the light is yellow actors to a greater or lesser extent. White LED color is much closer to direct sunlight, it becomes more natural colors. Some think that the color nnatural roll? Because they are used, the individual bulbs in. This May take some time before they are satisfied with the color.
In the flashlight
We have all these white-light LED flashlights, we can find our review. A new development in the future on the market as quickly as it is very difficult to work with, we must always be a little behind for some time.
A large number of single-title "Key Chain" style of light may be that migration in the short term, they do not have a coherent model. We believe that the continuation of the basic elements are not flash, so that we do not have a review of the new lights do not have this feature.
Note: If you manufacture or distribution of light, we do not apply, please send an email to us, we will take steps for the evaluation of light (the region) under review .
Some say waterproof lighting or water-resistance. ? However, in addition to a range of products of the manufacturer, they are not the true meaning of water in one and the same thing, because we believe that the dive waterproof lights. ? (In fact, the technical terminology ubmergible whip? Recognized standards and testing methods.) In most cases, these lights do not claim to be water resistant - if the fine print. ? We approved wasserdicht lights below for a few days to four feet of water, and all for a reasonable amount for the test. ? Those who are waterproof, we are surrounded by water for 5 minutes. ? Done very well. ? Then we have to deal with a pool, and the lungs. ? Little, to continue their work.
The lamp has a number of anti-water, even if they were flooded after the interior dry and wet, you need to ensure its effectiveness. ? Do not lead to rust sooner or later, the exploitation of chaos.
Impact resistance is another advantage of the LED. The flashlight we drop the test 4 times at 6 feet of concrete are not a small light emitting diodes and method of rejection of any evidence of further damage to the shell. ? It is an impressive achievement.
In some cases, the tube more than one battery flashlight batteries or AA, we have a number of failures. This occurred intermittently, and fell only in the head and tail. The responsibility of the weight of the battery from the positive strain (hereinafter referred to as "nipple"), so that their entry into the body of the flashlight. If yes, how the loss of contact between the battery or is there some sort of internal injuries, to prevent the flow of electricity. This is not what happens to the traditional concept is very similar to a flashlight.
Although some manufacturers claim that LED is 100,000 hours, and other requirements, only 50,000. The experts tell us that the life of the LED may be very different from their supply and use. ? Many of these fires more excitement than the original design of light emitting diodes, and to strengthen the power of lighting. ? Despite this, it is expected that light, as we mentioned earlier, tens of thousands of hours, and in the context of implementation. May they be destroyed if the application too much power, and not just for our test problem.
Another important advantage of the china LED flashlight, as indicated above, to extend the battery life is far from what we expected, but our actual results of the claims of various manufacturers, plus and minus signs. ? There is no real standard for measuring battery life with this new technology, all claims must be taken to the salt. In addition, they are relatively rare in Apple, the production of light is often much smaller than a standard bulb flashlight light bulbs.
Since the battery is known as light emitting diodes will not, it is simply too low. ? In many cases, it is light and the rest of the long or longer than the rated luminous flux and a flashlight in May still be available to reduce the number of households in this light. ? In many cases, the battery can be measured in days rather than hours. ?
We have arbitrarily defined as the lifetime significantly DIMMER bright and original function. ? Most of them have a white light illuminated a short initial period of greater brightness, and then dropped slightly below the level of illumination will continue for some time. In addition, under normal operating conditions, including a flashlight, the overall use of intermittent, the battery can be longer, because when the batteries are, at worst, a continuous stream.
In this regard, the battery supply and price situation, the problem is to consider, depending on the issue, and you live or plan to travel. Normal level of alkaline AAA, AA and C - and D - the battery is easy to find almost everywhere, but cheap. Unusual, for example, AAAA alkaline batteries 3.6 V type AA batteries or lithium batteries, cell size can be very difficult and expensive to find advice, often more than 10 U.S. dollars. The amount of coins in the Middle East and lithium button batteries, commonly used in watches, hearing aids and similar devices, it is quite frequent, even non-franchised, and the costs, not good market, it is not outrageous.
Lithium batteries deliver more power in general is very well suited to compare the size of the package. May this be stress or life, or a combination of both. Lithium-ion have a longer life than alkaline batteries up to 10 years 90-95% of capacity, or better leave. After a while, life Conservative lithium battery for 6 years. It was expected that only 4-5 years of life of alkaline batteries for the conservative daily battery of 2-3 years. Lithium batteries are also a better performance in cold weather. Another advantage is that they are much lighter than a third the size of the basis of comparison. For example, the AA-type lithium battery weighs 23 grams and 14.5 grams of AA alkaline batteries.
In considering the scope of the torch light LED 24 white LED flashlight. ? Even smart, not as much as possible, a good beam quality, beam halogen or xenon bulb flashlight traditional, large or small. ? This is a request not to stop flying mixtures isible over 1 mile? This is not a false statement on a little misleading if you do not read. ? Some people find May the light of a mile from reality, this does not mean that you can easily a mile of two very different things.
But for many purposes, light, width and perfectly targeted to the best of them offer an excellent quality of light, light scattering, combined with exceptional battery life in general and almost invulnerable "onion". ? We test and even the fire does not require batteries. ?
The size varies greatly from a young age is less than a quarter of the use of micro-light lithium batteries in the light of the size of conventional 3 D - Cell flashlight. Small flashlight to identify the needs of the real function of the small, we think. ? Virtually anyone cares about the big bulge in your pocket, it is unpleasant, unsightly. Relatively easy to increase your maximum capacity, increasing the size and weight of the arrest warrant.
ETS is pleased to work with Craig Johnson's LED issues. It offers a museum of LED flashlight LED reviews, technical data and photos, and a slightly different view.
Note: The suggested retail price in May 2001 for comparison. Many, but not all of these lights can be ignored.
Note: The manufacturer offers a producer and a key element, not only. ? Some of the many small objects, such as screws and fragmented electronics components, reducing production in the country and in other places, it will be difficult, all these little details. ? We are not a list of common elements, or, as the batteries are almost always in low-cost manufacturing countries. Only the major component (district) outside the country, are shown separately.
Click on photo to enlarge.
Most of us have experienced embarrassing, but not our flashlights, generally less than once. Even if it is useful for backup and change can become a problem in the dark. How to find an attractive bulb flashlight has the momentum, or at least tens of thousands of hours of work?
Second, battery life, or lack thereof. ? If not, no light bulbs, batteries occurs gradually. ? In light gray, but most of the time you need. ? Replace the batteries in the dark, even if you have them, usually a process. How attractive would be to find a battery of flashlight for the tens of thousands of hours or hundreds of hours?
Light-emitting diodes
We talk about the led flashlights, the use of LED (light emitting diodes) instead of traditional bulbs. Yes, it's the same thing you see light in electronic devices, digital signs, cheap keychain lights, and for many years. ? This problem, although the light-emitting diodes spectrum of colors, but they should not know - until recently. ? Other colors, a small enough light to read a chart or your night vision is not diminished but, in general, the effective use of them to be much to be desired. Some people try, with a mixture of colors, have different effects, but not very elegant solution.
In early 1990, Shuji Nakamura of Nichia Chemical (now the Group of Asian States), for the first viable white LED (read: his greatest success in this area is one of the most important and interesting interviews It opposed the development of this land, and Other Equipment interviews Scientific American). ? Indeed, the long-term proposal Hite lights? If it is not technically correct. ? Blu-Ray of light-emitting diodes, but with low fluorescent coated blue, white light.
In part, this was due in two phases, the first example of this is quite dark. ? They are also very expensive, because most new technologies developed. Recently, they have always brilliant and beautiful, but not cheap, at least more affordable. Although there is still much higher than other comparable LED Dimmer size and energy consumption, they are bright white LED flashlight reality, at least in some applications. The brightness also depends on the angle of the LED is a reflection of this point. The emergence of a narrow angle (20 degrees) of the LEDs is also more convenient.
Not all the white LEDs are identical. If they are LEDs, particularly white LEDs, there are significant changes, two of the brightness and color, sometimes a problem, of course, in our test. Like pearls, LED, May it be that in this case, the output, and color. One consequence is that it is clear that you want to know and make them more of a flower if the price is more expensive, these LEDs. ? These high-end products more expensive.
In each case, the blue and white, a very different type of bulb filament lamp. No matter what the light is yellow actors to a greater or lesser extent. White LED color is much closer to direct sunlight, it becomes more natural colors. Some think that the color nnatural roll? Because they are used, the individual bulbs in. This May take some time before they are satisfied with the color.
In the flashlight
We have all these white-light LED flashlights, we can find our review. A new development in the future on the market as quickly as it is very difficult to work with, we must always be a little behind for some time.
A large number of single-title "Key Chain" style of light may be that migration in the short term, they do not have a coherent model. We believe that the continuation of the basic elements are not flash, so that we do not have a review of the new lights do not have this feature.
Note: If you manufacture or distribution of light, we do not apply, please send an email to us, we will take steps for the evaluation of light (the region) under review .
Some say waterproof lighting or water-resistance. ? However, in addition to a range of products of the manufacturer, they are not the true meaning of water in one and the same thing, because we believe that the dive waterproof lights. ? (In fact, the technical terminology ubmergible whip? Recognized standards and testing methods.) In most cases, these lights do not claim to be water resistant - if the fine print. ? We approved wasserdicht lights below for a few days to four feet of water, and all for a reasonable amount for the test. ? Those who are waterproof, we are surrounded by water for 5 minutes. ? Done very well. ? Then we have to deal with a pool, and the lungs. ? Little, to continue their work.
The lamp has a number of anti-water, even if they were flooded after the interior dry and wet, you need to ensure its effectiveness. ? Do not lead to rust sooner or later, the exploitation of chaos.
Impact resistance is another advantage of the LED. The flashlight we drop the test 4 times at 6 feet of concrete are not a small light emitting diodes and method of rejection of any evidence of further damage to the shell. ? It is an impressive achievement.
In some cases, the tube more than one battery flashlight batteries or AA, we have a number of failures. This occurred intermittently, and fell only in the head and tail. The responsibility of the weight of the battery from the positive strain (hereinafter referred to as "nipple"), so that their entry into the body of the flashlight. If yes, how the loss of contact between the battery or is there some sort of internal injuries, to prevent the flow of electricity. This is not what happens to the traditional concept is very similar to a flashlight.
Although some manufacturers claim that LED is 100,000 hours, and other requirements, only 50,000. The experts tell us that the life of the LED may be very different from their supply and use. ? Many of these fires more excitement than the original design of light emitting diodes, and to strengthen the power of lighting. ? Despite this, it is expected that light, as we mentioned earlier, tens of thousands of hours, and in the context of implementation. May they be destroyed if the application too much power, and not just for our test problem.
Another important advantage of the china LED flashlight, as indicated above, to extend the battery life is far from what we expected, but our actual results of the claims of various manufacturers, plus and minus signs. ? There is no real standard for measuring battery life with this new technology, all claims must be taken to the salt. In addition, they are relatively rare in Apple, the production of light is often much smaller than a standard bulb flashlight light bulbs.
Since the battery is known as light emitting diodes will not, it is simply too low. ? In many cases, it is light and the rest of the long or longer than the rated luminous flux and a flashlight in May still be available to reduce the number of households in this light. ? In many cases, the battery can be measured in days rather than hours. ?
We have arbitrarily defined as the lifetime significantly DIMMER bright and original function. ? Most of them have a white light illuminated a short initial period of greater brightness, and then dropped slightly below the level of illumination will continue for some time. In addition, under normal operating conditions, including a flashlight, the overall use of intermittent, the battery can be longer, because when the batteries are, at worst, a continuous stream.
In this regard, the battery supply and price situation, the problem is to consider, depending on the issue, and you live or plan to travel. Normal level of alkaline AAA, AA and C - and D - the battery is easy to find almost everywhere, but cheap. Unusual, for example, AAAA alkaline batteries 3.6 V type AA batteries or lithium batteries, cell size can be very difficult and expensive to find advice, often more than 10 U.S. dollars. The amount of coins in the Middle East and lithium button batteries, commonly used in watches, hearing aids and similar devices, it is quite frequent, even non-franchised, and the costs, not good market, it is not outrageous.
Lithium batteries deliver more power in general is very well suited to compare the size of the package. May this be stress or life, or a combination of both. Lithium-ion have a longer life than alkaline batteries up to 10 years 90-95% of capacity, or better leave. After a while, life Conservative lithium battery for 6 years. It was expected that only 4-5 years of life of alkaline batteries for the conservative daily battery of 2-3 years. Lithium batteries are also a better performance in cold weather. Another advantage is that they are much lighter than a third the size of the basis of comparison. For example, the AA-type lithium battery weighs 23 grams and 14.5 grams of AA alkaline batteries.
In considering the scope of the torch light LED 24 white LED flashlight. ? Even smart, not as much as possible, a good beam quality, beam halogen or xenon bulb flashlight traditional, large or small. ? This is a request not to stop flying mixtures isible over 1 mile? This is not a false statement on a little misleading if you do not read. ? Some people find May the light of a mile from reality, this does not mean that you can easily a mile of two very different things.
But for many purposes, light, width and perfectly targeted to the best of them offer an excellent quality of light, light scattering, combined with exceptional battery life in general and almost invulnerable "onion". ? We test and even the fire does not require batteries. ?
The size varies greatly from a young age is less than a quarter of the use of micro-light lithium batteries in the light of the size of conventional 3 D - Cell flashlight. Small flashlight to identify the needs of the real function of the small, we think. ? Virtually anyone cares about the big bulge in your pocket, it is unpleasant, unsightly. Relatively easy to increase your maximum capacity, increasing the size and weight of the arrest warrant.
ETS is pleased to work with Craig Johnson's LED issues. It offers a museum of LED flashlight LED reviews, technical data and photos, and a slightly different view.
Note: The suggested retail price in May 2001 for comparison. Many, but not all of these lights can be ignored.
Note: The manufacturer offers a producer and a key element, not only. ? Some of the many small objects, such as screws and fragmented electronics components, reducing production in the country and in other places, it will be difficult, all these little details. ? We are not a list of common elements, or, as the batteries are almost always in low-cost manufacturing countries. Only the major component (district) outside the country, are shown separately.
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