1. Wipe dry with a soft cloth immediately after using the flashlight to prevent use in rain or snow or the penetration of moisture and hand sweat. Otherwise, the coating of the flashlight is easy to fall off or rust. 2. Do not put the flashlight on the hot Kang or beside the stove at…

When overhauling, it should be noted that the light-emitting element of this flashlight is a “light-emitting diode”, which has the characteristics of light-emitting, but also has the characteristics of unidirectional conduction and reverse breakdown of the diode. First check whether there is an open circuit in the circuit, whether the switch is in poor contact,…

Most of the strong light flashlights are cup-shaped focusing, and most of them are not focusing. The focusing is basically lens-type. The focusing methods are divided into common stretching focusing and screwing focusing. The latter is more reliable. But no matter which method, the overall reliability is reduced due to its movable structure, so high-reliability…

Ordinary flashlights use incandescent bulbs. Under the same brightness, the power consumption is about 3-5 times that of LEDs. Therefore, LED flashlights are better than ordinary flashlights. The main advantage is that they save electricity. When the same battery is installed, it can greatly extend the use. time. In addition, incandescent bulbs are easy to…

1. The long service life of LEDs can generally reach more than 50,000 to 100,000 hours, which is 5 to 10 times longer than that of traditional tungsten filament lamps. 2. Cold light, low heat generation, will not damage the lamp holder, and high safety. 3. Fast reaction speed, impact resistance, good weather resistance, small…

Generally, current LED flashlights mostly use high-power LEDs as light sources. The common 3-5W high-power LEDs generally have a lifespan of 100,000 hours, which is the longer life of the current light source and the advantage of LEDs. Flashlights The lifespan of the product depends on the quality of the product. It is not that…

The power of the LED used in the flashlight is not necessarily. Generally, pocket flashlights below 10CM use 1-3W LEDs, while larger ones are generally 3-5W or even 10W LEDs. Larger ones use multiple 18650 battery flashlights. You can use 20-50W LEDs.   

Precautions for the purchase of flashlights: 1. The number of heads should be moderate. Generally, no more than 12 batteries should be used for household use. It is better to use 2 to 3 batteries. Larger batteries are a bit wasteful. You can determine the batteries used for other special needs according to your needs.…

Hiking generally does not require too high a brightness. Because of the longer time, you can choose a lighter flashlight as much as possible, and at the same time have longer battery life. Under normal circumstances, the flashlight needs to take into account moderate concentrating and flooding. However, the team leader still needs a brighter…

“Strong torch” refers to a night lighting tool that uses ultra-high-brightness and high-power white LEDs as the light source. Generally speaking, in total darkness, a torch that can illuminate objects 100 meters away can be seen clearly. It is a “strong torch”. It is a kind of lighting tool produced in response to the needs…

The light-emitting principle of light-emitting diodes is more complicated than other flashlight light-emitting principles. It belongs to the direct combination of injected electrons and valence band holes to emit light. There is also a situation where the injected electrons are first replenished by the light-emitting center. , And then recombine with holes to emit light.…

High energy saving: This is a pollution-free led flashlight with relatively low power consumption. Long life: This kind of led light source is also called a “longevity lamp”. In the solid cold light source, the lamp body is not easy to loosen. Many variations: Don’t think that the led flashlight must be white light, and…

To buy a bright flashlight, you need to look at these aspects: 1. Look at the material, aluminum alloy or titanium alloy is better, but titanium alloy is too expensive and not bad for the money. 2. Look at the lamp beads, a good flashlight must choose a good core. 3. To see whether the…

The flashlight’s flashlight function refers to the faster flashing frequency. It has the self-defense function of shaking the opponent’s eyes. The role of the flashlight is to remind. For example, if you need to attract the attention of others in an emergency, you can turn on the flashlight so that others will notice. Own. For…

The brightness of the strong light flashlight is that the visible distance is more than 5000 meters, the irradiation distance can be more than 100 meters, and the highest brightness is 100 lumens. The environment for outdoor activities is complicated, and no one can guarantee what kind of situation will be faced. When high-brightness lighting…

Lighting tools are used at critical moments, so be sure to choose a viable product. In this respect, sloppy is irresponsible for your life. The lamp in the field is safe because the light and the heat it emits attract insects, which may attract cold-blooded animals. Therefore, everyone must carefully choose a camping light that…

What is the spotlight? Concentrated led glare flashlight, every day refers to the use of concentrated light or mirrors. Concentration is actually the central spotlight of the glare flashlight. It shines brightly, the center point is very bright, and the edge brightness is low. Now it is a popular flashlight. The central spot beam is…

1. LED is the illuminant: it is the key to a flashlight function, the LED is the high efficiency (power saving) and the long life is very long (the theoretical 5-10 million hours), the light bulb type flashlight power consumption contrast fierce, However, color rendering is the best. 2. Light cup and lens: the light…

Q: Cree produced red LED chip it? A: Cree has been no production of red LED chips, only blue light, green and UV LED chip. Q: Cree chip silicon carbide (SiC) substrate material is it? A: the Cree small power LED chip and are based on silicon carbide (SiC) material as the substrate, while the…

When using a fully charged flashlight, it is best to use the second gear first, pay attention to heat dissipation, if you do not use the flashlight for a long time, please take out the battery and other related knowledge. Flashlights need to be regularly inspected and tested. If they are found to be inoperable,…

Red light is also used by many outdoor people, especially in Europe and the United States. Night hunting are popular in many countries in Europe and America. Red light hunting flashlights are popular among European and American hunting enthusiasts. The human retina contains two kinds of photosensitive tissues: pyramidal cells, rod cells, pyramidal cells to…

Lithium battery” is a kind of battery that uses lithium metal or a lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. In 1912, lithium metal battery was first proposed and studied by Gilbert N. Lewis. In the 1970s, MS Whittingham proposed and Lithium-ion batteries have been studied. Due to the…

The lithium battery charger is a charger designed to charge lithium-ion batteries. Lithium-ion batteries have higher requirements on chargers and require protection circuits. Therefore, lithium battery chargers usually have high control precision and can perform constant current and constant voltage charging on lithium-ion batteries. Features 1. Ideal control circuit for single-section or 8.4V dual-cell Li-Ion…