You need a flashlight, it certainly has reason to need it. A good flashlight is not necessarily an expensive flashlight, do not work certainly is a good flashlight. Only for their own use, is the best.
In order to appreciate the LED flashlight is not quite the novice can quickly find their own flashlight , so you purchase a flashlight from below, the purpose and requirements to write. You only need to press your request to find Nianye problem, you can find what you need and cheese for you. (bright led flashlights)
General torch first have the following purposes:
One. Walking with a flashlight lighting
Is the most common uses, Nianye down stairs used for night, evening commute, or take out only, only for lighting when walking, generally require the pan with plenty of light, medium brightness, color is good. Not ask for much of the cheese, choose a wide scale. OUR Nianyenianye are the torch can be content with such a request.
1. Cheese Type: You can use straight or AA 18650 cheese.
2. Required to achieve the brightness: the brightness flat Nianye not ask for much walking trail, a power of 1W AA cheese more than enough. If it is the village’s dirt roads or mountain mountain, the best starting a 18650 cheese.
3. LED light color, dry conditions in the road with a white LED on the line, be it mountain or in the case of wet, preferably with hot white or natural white LED to add color, but can a power Nianye point with Nianye power of cheese to cheese, the fact that the main safe.
4. What the circuit to stall: a single file or high, strobe third gear. Strobe first to remind people use when crossing the road.
5. What Light Cup: Because the requirements of the Pan-light is good, so recommend the cup with orange peel, and the best surface to a lighter orange cup. Reasons why to use a lighter, not only is relatively little light condenser, also refers to the LED emitted light to have more light is not direct injection reflected by the reflector to the. Reflected by the reflector does not benefit is the lower efficiency of orange peel reflector, and some can only reach 70% of the mercy, not by the reflection that it will light a little bit. When used in the case of smaller power cheese, I do not recommend the use of orange peel cups of the cheese, but with slightly higher rates of smooth reflective cup of cheese, of course, refers to a lighter smooth cup. (xenon flashlight)
6. Required to renew, the outer unsightly: click on my favorite may be happy.
7. Requirements waterproof function: to prevent shower of rain at night can be.
8. Price: According to the economic strength of the ego, the general selection of cheap enough to use tube
II. EDC with (EDC every day carry meaning, to prepare for contingencies)
1. Cheese Type: EDC to facilitate the carrying out of course requirements. Differences required for the battery and the volume of cheese with some differences are: The most convenient is the AAA; the brightest and most long-range is 16,340, and the various functions are good to buy the battery is the most convenient AA; life is the longest time 18650 straight cheese.
2. Required to achieve brightness: EDC with the cheese and the usual daily walk with the point of cheese a lot, the only differences to reach around the case of functions, requirements must be small enough to facilitate carrying. So I think the EDC’s small cheese demanding than walking with the tube is much higher. EDC also has a feature that is part of an hour in the Nianye light a few seconds or minutes only, without considering long-time lit fever. Therefore, the natural requirements of high brightness lithium is the best. General requirements for with AA or AAA.
3. LED light color: white light can be used.
4. Time with various types of battery life: the pursuit of highlight to use various types of lithium batteries. Loss in power LED 3W, current 750MA, the various types of lithium batteries following the flight times: 18650 times in three hours of battery life; 16340 or 14500 times in 1 hour battery life; 15266 or 10440 life time of 20 minutes; the pursuit of middle power and common good, to be able to buy a small shop with all the popular battery. Use rechargeable AA batteries, the discharge current 2A mercy, the life time of about 1 hour; with the capacity of high-quality alkaline AA batteries 2200MAH, discharge current 1A mercy, the life time of about nearly 2 hours (if the current use of 2A discharge on the very economic, often only half an hour highlight); AA batteries with garbage, 1A discharge nor economic, preferably 500MA current discharge, life time can reach about 2 hours.
5. What Circuits: 18650 7135 tube is best to use the composition of constant current circuit, with the boost circuit is not recommended, because most the same circuit 7135, high efficiency, constant current circuit error 7135 error is inevitable when the voltage level of low to , The more you use the lower brightness, the error error is often of interest in the EDC: Who can guarantee that when you are when you need to use flashlight, electric torch you plenty of it exactly, when your little power, the 7135 circuit just can supply a very dark light, at least for right about now. For AA cheese, it would only boost circuit can you, best to use good quality and high efficiency, to save power endurance time to achieve the purpose of delay.
6. What the circuit to stall: high, medium, low, strobe, SOS, is still the most used high, medium and second gear.
7. What Light Cup: Head Diameter Nianye, just like straight 16340 18650 and use, and recommend a lighter orange with a glass surface. Reasons why to use a lighter, not only is relatively little light condenser, also refers to the LED emitted light to have more light is not direct injection reflected by the reflector to the. Reflected by the reflector does not benefit is the lower efficiency of orange peel reflector, and some can only reach 70% of the mercy, not by the reflection that it will light a little bit. When used in the case of small cheese head, like AAA’s cheese, it is proposed that higher rates of smooth reflective cup cheese, a good glossy on the cup can be in the AAA to form a spot in the vicinity, there is a bright spot is still fighting Jin useful.
8. Required to renew, the outer unsightly: To wear the best, like stainless steel or HAIII’s.
9. Requirements waterproof function: to prevent shower of rain at night can
10. Price: According to our economic strength of small, usually slightly more expensive choice of cheese, the fact that all day long to follow their own, the operation rate, of course, starting a good point.
III. Outdoor search by (such as hunting or outdoor dealings need to highlight, required long-range)
1. Cheese Type: 18650 Nianye head with the necessary (power Nianye, high brightness, can long-range, following the flight time of 1.5 to 3 hours); if not pan without high-brightness light, not a good spot, you can use the transferred very spot small lens flashlight.
2. Required to achieve the brightness: much overclocking are used for LED, LED current is often used to reach the limit, using 18,650 cheese, the general current of the operator 1000MA, 1200MA is close to the LED Q5 limit, because then add current, the luminous intensity of a very small increase, but the LED life Nianye reduction is not recommended across 1200MA. At this time, LED power dissipation to 4.5W mercy.
3. LED light color, in the case of wet conditions, the best hot-colored LED, in the dry case, the best to use white LED, because the white color to light than heat.
4. Various types of battery life time: the pursuit of highlighting, with 18650 Nianye head, power 3W, current 750MA of the cheese is the minimum requirement, life time of three hours; current 1200MA, power of 4.5W, the LED which is the limit Q5 as with the boost circuit, LED current 1200MA, the battery side of the current could reach 1.2 to 1.7A, life time of 1.5 hours.
5. What circuit: of course, with the 18650 lithium batteries, but the Q5’s high voltage, 3.7V when the battery discharge platform can not supply enough current to the LED Nianye, so generally use the boost circuit, it is best to use quality good efficiency, as highlighted file a short life time and not the economy.
6. What the circuit to stall: high, medium and low grades, and fifth gear.
7. What Light Cup: Because the requirements of flood less, usually with deep Nianye fresh fighting caliber smooth cup.
8. Required to renew, the outer unsightly: General requirements cheese is black.
9. Waterproof function requirements: at least on night rain shower proof, because sometimes wading, so the general requirement is soaked in cold water when hot cheese is also fine.
10. Price: by how little I need to be kind of long-range function in order to achieve high brightness and super long-range function, the general selection of high brightness and long-range barrel if the function and compromise other aspects outside the unsightly, can use in the low to cheese. (hid flashlight)
IV. Vehicle use (never on the car, useful when easy reach of the cheese)
1. Cheese Type: recommended straight, you can use 18650 straight (power Nianye, high brightness, following the flight time of about 3 hours), or AA power than Nianye cheese straight (batteries can be bought everywhere, carrying convenience, following flight time of about 1 hour).
2. Required to achieve the brightness: 18650 If using cheese, current of 750MA, LED 3W dissipation power of mercy on the line, if the end use of AA batteries to achieve the best 2A current high level of AA.
3. LED light color, if the vehicle is sometimes used to walk with, or is still fresh with hot white bucket right.
4. Various types of battery life time: The 18650 lithium battery, power 3W, current 750MA of the cheese in the three-hour battery life time; use rechargeable AA batteries, the discharge current is 2A at the mercy, the life time of about 1 hour; with high-quality capacity of 2200MAH alkaline AA batteries, the discharge current 1A mercy, the life time of about nearly 2 hours.
5. What Circuits: 18650 tube is best to use 7135 constant current circuit composed of strongly not recommended to use step-up circuit, the circuit because the 7135 the most constant, high efficiency, constant current circuit error 7135 error is inevitable when the voltage level of low to , the more you use the lower brightness, this error error in the dead but when the torch is a strong need for benefits. For AA cheese, it would only boost circuit can you, best to use good quality, especially violent shock in a long time after the highly reliable to ensure that the purpose can be used at any time.
6. What the circuit to stall: high, medium, low, burst flash. Explosive flash is required, if the Lord can serve as a reminder in the car after the car’s purpose.
7. What Light Cup: because, is often close, if too much focus on the contrary, blind spot, so it is good flood light requirements, so recommend face with a lighter orange cup. Reasons why to use a lighter, not only is relatively little light condenser, also refers to the LED emitted light to have more light is not direct injection reflected by the reflector to the.
8. Required to renew, the outer unsightly: essential wear
9. Requirements waterproof function: to prevent shower of rain at night can be.
10. Price: According to our economic strength of small, usually selected in the price of barrel suffice.
Five. Gave MM flashlight (MM’ll think of you in the evening)
1. Cheese types: how fancy, how to provoke the selection of MM like the first song is the cheese.
2. Required to achieve brightness: brightness, of course not too bad, but the MM who asked not be too high.
3. LED light color: white light can be used.
4. Battery life with all kinds of moments: moments here, following the route to the next time you want MM to see the moment may be. Once again, like you want to see MM, then use the bucket compared to CR2 or CR123 so difficult to buy fresh batteries, need to do is shine the electrical charge or only a little bit of appropriate power, and soon, no torch electricity, MM to come to you anyway. If you do not want to see the MM, it can use AA batteries or AAA batteries to give her cheese, if using the battery is dead after she has come to you, you trouble Nianye out.
5. What circuit: does not matter, as long as the bad is not very lightly on the line.
6. What the circuit to stall: MM is not very smart and split into files of the East ah feeling you generally will not bother with it, but just a file and not fancy, it can not emerge out of line your cheese in, so necessary second gear is a bright flash and explosion, and she said, is the anti-wolf flash burst, no matter what the wolf saw the disappearance of the city running.
7. What Light Cup: no dust can be shiny.
8. Required to renew, the outer unsightly: it is best to wear, like stainless steel, or put to all kinds of cosmetic bag, and her secret sword PK few days to a contemporary new look, she would like you how to send such a not solid stuff, I also measure you little about it.
9. Requirements waterproof function: to prevent shower of rain at night you can, you can soak in the water performing a MM perspective, of course, is to make good the cheese was given to MM to her mental preparation to read.
10. Price: According to the economic strength of the ego, the general broadcasts species can not do anything, almost the only choice. If it is chosen to as LD, and then of course the cheese of your choice, ah, the more expensive the better. (focusable flashlight)
Flashlight knowledge base
The foundation of common sense torch: flashlight from the luminous body, battery, circuit, case, reflector, circuit positions, switches and other components, the foundation of common sense is the current from the battery out, and then to the circuit, adjust the voltage and current through the circuit, then output to light, the light illumination.
One. Illuminant
Flashlight with the light are: incandescent, LED, HID, etc., LED unit unified with the lumens of brightness (Lumens) mark, which is all that flux.
1, LED:
The most popular is the LED, the Chinese name is “light-emitting diodes”, are generally low-power LED bulls used in the 1AA or 3AA, this I do not say, power in fact too small, home can be, nothing more than outdoor more backward, the first talk about the outdoor use of the power of 3W or more Nianye it, is the primary representative of the most popular eras of American CREE LED, long life, according to the manufacturer data up to 10 million hours.
Primary types of parameters:
P3, 350mA brightness 73.9-80.6Lumens, 700mA brightness of 119.7-130.6Lumens
P4, 350mA brightness 80.6-87.4Lumens, 700mA brightness of 130.6-141.6Lumens
Q2, 350mA brightness 87.4-93.9Lumens, 700mA brightness of 141.6-152.1Lumens
Q3, 350mA brightness 93.9-100.4Lumens, 700mA brightness of 152.1-162.6Lumens
Q4, 350mA brightness of 100.4-107Lumens, most Nianye current 1000mA
Q5, 350mA brightness 107-114Lumens, most Nianye current 1000mA (up to 220-250lm)
R2, the most Nianye current 1000mA (up to 260lm)
Type of course much, we are the most commonly used is P4, Q2, Q5, one of the most popular at the moment than the Q5 was because of high efficiency, brightness Nianye, the current can go to the 1A, up to 250 lumens brightness. If want to have good long-range and flood will use MC-E and P7, really good, suitable for bicycles and city lighting,
2, halogen bulb.
On the market much earlier, in the popular hour LED not very popular at the moment is very small
3, the popular light bulb (incandescent). The Needless to say, the most representative is the common tiger flashlight, and childhood growth accompanied us, nothing more than a bit behind the times now, nothing more than low price is still a lot market.
4, charge xenon gas tungsten filament xenon bulb.
Inside the xenon gas filling, light forward much to the light yellow color. Characterized by high brightness, but life is short, it up to 40 hours at the mercy.
5, HID (high-pressure xenon gas discharge lamp).
Inside the xenon lamp filling, high light, high brightness, power, the power of a common 10W, 24W, 35W, 1000-3000 lumens brightness, lamp life 3000 hours to have the highest, is the key leader in flashlight. Much interest is the error error: Anjing such as cups and status lights, get down the volume, the volume than the average single flashlight partial Nianye 18650, the most terrible is the word “expensive”, but also the cheapest 1000 more, not a general audience consumption.
Second: Battery
Flashlight batteries are commonly used in AA (5 batteries), AAA (7 batteries), AA alkaline battery that is divided can not be all that battery charging (1.5V) and can charge Ni-MH battery (1.2V);
There is a lithium battery, the voltage 2.45-4.20V, models 14500,16340,18650 and so much to look at these figures some faint companion, how distinguish that, ah, actually very simple, given the number of models are there for a reason , like the 14500 battery is 14 mm in diameter, length is 50 mm; 16340 cell diameter is 16 mm and a length of 34 mm, and so on, 18650 battery is 18 mm in diameter, length 65 mm.
Lithium is also sub-circuit with care (to prevent overcharge and over discharge of the circuit) and without, the master should know that lithium batteries can not overcharge and over discharge, and if the battery charge is full of power and still no charger even longer time out to charge leakage will occur, or ***; if put, is that the battery used to power not the only charge, so the city causing the battery to be scrapped at the moment would not have installed the care of this circuit problem issues, but the error is the volume change Nianye error, the ratio of the circuit without a care (that is, the battery on the paragraph size) to Nianye point, add 1 mm in diameter, mercy, mercy of the length of added 2 mm. Makes some flashlight batteries put some hour of hard, need to be slowly into the temptation to no more than Nianye departments are easily put to the torch’s.
There is a problem of batteries in series parallel problems, series current constant voltage of 2 times before; parallel voltage constant current of 2 times before. (200 led flashlight)
If the battery is with the care of the circuit (with anti-overcharge and over discharge function) do not need to look at the following describes the following primary care if there is no circuit for the lithium battery to explain this:
New battery is not too much; to first use the battery when not charging time is too long, only renew, in accordance with the charger can charge instructions:
In the charge, in accordance with the charging speed of the charger, when the indicator changes color when the battery out immediately, not too filling, it is recommended not to over 3-5 hours charging time;
Charging is finished, take out the battery from the charger;
Select the charger, the best use of the charger overcharging;
In use, in accordance with the requirements of the voltage torch battery, not to abuse, to prevent burn torch;
In use, the brightness when the torch when the change will occur over the torch block, to prevent over-discharge, (not the same as mobile phone batteries, use the phone to automatically shut down, so the battery will be put, but can not be reused);
Tips: flashlight in use, to ensure normal cooling, holding hands is the best style, it is recommended to be placed in accordance with the torch lighting moment a fever with a hand about the situation in real time in order to heat;
Torch when in use, it is recommended after every 30 minutes, blocked with 2-3 minutes to heat; hope moisture resistance and other waterproof battery.
III: Circuit
The battery can be direct-drive (that is, the two ends of the battery directly linked to the LED with a wire connector on the positive and negative) Nianye departments LED’s, but the current does not change, there Nianye a small, lightly causing shortened life LED light failure occurred, so control voltage and current flashlight on the birth of a dedicated circuit, the circuit has the next most important categories:
1, the boost circuit. First and foremost for use 1AA, 2AA flashlight battery, because Nianye departments the operating voltage of 3.6 LED mercy, AA battery voltage in the 1.2-1.5, the voltage is not enough, you will need to make LED voltage to rise to 3.6 to work, it occurred this circuit.
2, step-down circuit. Generally used in the double lithium flashlight on, like with 2 16340’s flashlight , LED operating voltage of 3.6, while the two 16340 series voltage 7.5V mercy, you need the output voltage of the circuit for the LED power supply down to 3.6 .
3, automatic buck circuit. As the name suggests is that when the battery voltage is higher than the LED operating voltage of the output voltage down to the hour put the LED’s operating voltage, when the battery voltage is lower than the LED voltage output voltage to rise to the hour of the LED’s operating voltage, so that constant pressure occurred constant, this is the best circuit of the.
Four: Flashlight, reflective glass
1, Tong Shen. Nianye departments are high-grade aluminum alloy flashlight, the material is poor Yes, renew, the primary difference in the profile, the general Nianye departments use a flashlight as long as no extraordinary renew, the oxidation is popular, black, gray-based. Some flashlight requires the ability to wear the color profile is not missing, then renew, anodic oxidation, renew, after the hard profile, and will not show signs of use Daogua, nothing more than the price to high.
2, light cup. Common Cup and the smooth surface of a cup of orange, orange surface is a bump against the profile of cup of orange peel-like, characterized by the average reflective, light out of the spot Peugeot; smooth reflective glass is characterized by high efficiency, condensing function is good, but also end is a good long-range, but out of the spot irradiated outer layer of aura people feel there is not perfect.