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In the event of an emergency, a flashlight is an important source of light for everyone. There are many flashlight products on the market. A flashlight is one of them. Want to know what is a glare flashlight? Let me introduce you to Xiaobian.
What is a glare flashlight
The glare flashlight, also known as the LED glare flashlight, is a new type of lighting tool that uses light-emitting diodes as a light source. It has the advantages of power saving, durability and brightness.
![什么是强光手电筒 强光手电筒价格]( "What is a glare flashlight glare flashlight price")
(1) Principle of LED illumination
The light-emitting diode is made of a III-IV compound such as GaAs (gallium arsenide), GaP (gallium phosphide), GaAsP (phosphorus gallium arsenide) and the like, and its core is a PN junction. Therefore, it has the IN characteristic of a general PN junction, that is, forward conduction, reverse cutoff, and breakdown characteristics. In addition, it has luminescent properties under certain conditions. At the forward voltage, electrons are injected into the P region from the N region, and holes are injected into the N region from the P region. A part of the minority carriers (small children) entering the other area is combined with the majority carriers (multiple sub-) to emit light, as shown in Fig. 1.
Assuming that luminescence occurs in the P region, the injected electrons directly composite with the valence band holes to emit light, or are first captured by the luminescent center and then condensed with the holes. In addition to this luminescent composite, some electrons are trapped by the non-luminous center (this center is near the middle of the conduction band and the intermediate band), and then recombined with the holes, and the energy released each time is not large, and visible light cannot be formed. The greater the ratio of the composite amount of luminescence to the non-luminous composite amount, the higher the photon efficiency. Since the recombination emits light in the minority carrier diffusion region, light is generated only within a few μm of the PN junction surface.
![什么是强光手电筒 强光手电筒价格]( "What is a glare flashlight glare flashlight price")
(two) the characteristics of LED
1. The meaning of the limit parameters
(1) Allowable power consumption Pm: The maximum value of the product of the forward DC voltage applied to the LED and the current flowing through it. Above this value, the LED is hot and damaged.
(2) Maximum forward DC current IFm: The maximum forward DC current allowed to be applied. Exceeding this value can damage the diode.
(3) Maximum reverse voltage VRm: The maximum reverse voltage allowed to be applied. Above this value, the LED may be damaged by breakdown.
(4) Working environment topm: The ambient temperature range in which the LED can work normally. Below or above this temperature range, the LED will not work properly and the efficiency will be greatly reduced.
Nowadays, the light flashlight with LED as the light source has been constantly entering our lives. With the advent of the development of LED diode flashlights to the current single-lamp high-power 1W, 3W, constantly enriching your choice of flashlight. In particular, the emergence of metal flashlights for aviation aluminum alloys has made many buyers feel excited.
![什么是强光手电筒 强光手电筒价格]( "What is a glare flashlight glare flashlight price")
Glare flashlight price
Supfire C8 glare flashlight long-range LED rechargeable mini self-defense riding outdoor lights
Reference price: 59 yuan
Magic iron / MOTIE led light flashlight straight rechargeable waterproof self-defense long-range 20 kinds of zoom home outdoor riding emergency lights
Reference price: 59 yuan
![什么是强光手电筒 强光手电筒价格]( "What is a glare flashlight glare flashlight price")
Amazon glare flashlight long-range charging self-defense anti-wolf weapon outdoor car stick stick mace LED tactical flashlight
Reference price: 89 yuan
Xuan's dream glare flashlight car small LED zoom rechargeable home led focus long-range Wang Chao spotlight
Reference price: 30 yuan
![什么是强光手电筒 强光手电筒价格]( "What is a glare flashlight glare flashlight price")
Hanguang 150WLED glare flashlight charging portable hunting searchlight waterproof explosion-proof long-range 1500 meters T2 imported lamp beads
Reference price: 69 yuan
Warsun BL-5 glare flashlight 5W zoom straight waterproof long-range riding
Reference price: 39 yuan
I have seen the introduction of Xiaobian, and now everyone knows what a glare flashlight is. Xiao Bian also introduced to you the current price of flashlights. If you need to buy a flashlight, I hope that the introduction of Xiaobian will help.
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