As a tube friend, I started with a lot of flashlights before and after. There are big, small, high-brightness, high-range, long range, and a lot of them. I have super long-range shots. I also have large floodlights. I have no choice. In order to pursue the shooting range, the shooter always makes the light spot very small. It is very inconvenient to use it at close range. The brightness is slightly higher, and the surrounding floodlight is less pathetic. The big light flashlight goes to the other extreme and the light cup is designed. Very shallow, invincible up close, but unfortunately can only illuminate this piece. Ultra-high-range long-range shots and flashlights with practical floodlights are rare, and the NITECORE TM28 is such a flashlight... From the point of view of industrial design, the TM28 has a very mechanical sense. The rectangular heat sinks on the surface and the military regulations oxidation attached to the outside of the flashlight can all reveal its unique texture. TM28 short thick body, its total length is 142mm, lamp diameter is 56.6mm, barrel body hand grip position diameter is 50mm, TM28 main switch is electronic switch, is set on the side of the flashlight, and also added in the barrel body A display design, we can through this main display screen to understand the torch lighting, temperature, stalls and other state, always my first impression of the TM28 is still good, let's take a look at how it is convenient to do in the details . The TM28 is a flashlight with both high brightness and range, so it has a total of four main light heads mounted on the TM28 square base holder, which makes it look more stylish. In the mirror glass position TM28, a stronger tempered glass is selected. At the same time, a coating treatment is performed on both the inner and outer surfaces of the mirror glass. This double layer coating method can greatly improve the light transmission from the lamp cap to the light cup, and vice versa. That is to reduce the probability of the light being folded back by the mirror glass. The four lamp heads are equipped with separate lamp cups, and a stainless steel reinforcement device is provided on each light cup, which is intended to protect the lamp cups from being easily damaged when the handles are dropped. The light cups carried by the four main light heads are designed to be deep in mind, and they are intended to take into account the long-range performance. From the design principle point of view, the deeper the design is for light cups of the same diameter, the stronger the long-range capability is. Because the deeper the light cup is, the more the light can be converged together to form a light beam, the longer-range capability is stronger. The TM28 is equipped with four XHP35 HI LEDs introduced by the United States CREE Corporation. This lamp head adopts the breakthrough SC5 technology of the United States CREE company. By optimizing the drive circuit, it can effectively balance the light while greatly enhancing its brightness, and these four The LED is mounted on four copper heat-dissipating substrates. This design can dissipate heat from the heat source to ensure its own stability after prolonged use. It is the main display screen of the TM28 with the position of the side of the main lamp holder. The rectangular display of the screen is protected by a stainless steel substrate on the outside, and a button for switching the main display information is located below the main display screen. Specific main display information and button switch, the actual measurement will be described in detail below. The button of TM28 is set at the bottom of the main display screen. The button is made of metal. This button is a dual-section design. NITECORE has also applied for a patent for this. The experience of this dual-section button is somewhat similar to the camera's button. Press and repress Get different feedback At the same time inside the button, a breathing light is also designed to be hidden. When the flashlight is on standby, the breathing light will be turned on. This design makes it possible to quickly find the flashlight in a dark environment. In the reverse position of the main display screen and switch, a 1/4-inch tripod screw hole was added. With this screw hole added, the TM28 can be attached to most tripods on the market. Adding this design, we can use the TM28 as a photographic light to increase its practicality. Located below this screw hole is the charging interface of the TM28. Now more and more flashlights are designed to improve the functionality and convenience of flashlights, and have introduced direct-inrush functions in succession, as ultra-high power like the TM28. Flashlight, straight-through interface is no longer suitable for USB charging interface suitable for low power, but use pinhole charging connector with larger charging power. Outside the charging port, a waterproof and dustproof silicone is installed. Plug, silicone plug tightness is very good, specific waterproof performance, the following will be tested separately. As a high-power flashlight, how can the lack of physical cooling design, located in the lamp and the battery positive position, each set a number of cooling fins, in addition to increase the ventilation efficiency to increase the cooling rate, while also reducing the weight of the flashlight part. When the button is pressed during grasping, the heat dissipation fins of the horizontal lines can also increase the friction when the hand grips, making it more secure. The barrel body is also full of design sense. Four rectangular slots are designed around the barrel. The warning, trademark, number and model of the flashlight are printed in each slot. The four groove designs not only provide better grip, but also reduce the weight of the flashlight. In the position where there is no groove in the barrel, diamond knurling treatment is set to improve the anti-skid effect of the flashlight. At the end of the barrel, a tail rope perforation was also designed. The seven-core paratrooper rope perfectly penetrates. The rear end of the TM28 is designed to be very chic, a bit like a hex gear, with the NITECORE website and model number printed above it. Its tail is wide and flat, and it is perfectly inverted. The attentive friend may have noticed that the tail rope perforation is set on the side of the barrel, so that it will not affect the inverted function of the umbrella rope. From the diameter of the barrel of the TM28, it can be inferred that the TM28 is powered by four 18650 batteries. Since its maximum brightness is as high as 6000 lumens, the instantaneous discharge current is very large. It is recommended to use the original IMR18650 battery. The inside of the TM28's lamp base is provided with two copper concentric positive contacts. When the original IMR18650 battery or other tip battery is used, the lamp can be used by simply tightening the lamp cap. And in the standard accessories, a connection board is also provided to connect the more common flat battery. The middle and the two sides of the connecting plate are the limiting fixtures, and the other four points are positive contacts. A warning sign is attached to this side of the battery which is in contact with the positive pole of the battery. It states that "When the battery is installed, the positive pole must be upward. At the bottom of the battery compartment, it is the negative electrode contact of the battery. The negative electrode contact and the positive electrode contact are also made of copper materials. Since the TM28 is a high-power flashlight, the copper material at the negative electrode is very thick. Compared with other flashlights, the TM28 is relatively large. Therefore, in order to improve the portability, NITECORE has also customized a flashlight cover for the TM28. The flashlight is made of nylon. After the flashlight is loaded, it is fixed by a Velcro. The back of the flashlight cover is made up of a webbing, a Velcro, and a D-ring to extend its portability. We can load electricity at the waist so that we can respond more efficiently and quickly. Or in the process of walking during the day, the electric handle of the handle is loaded on the MOLLE webbing on the backpack, which can save space and will not cause any impact on oneself. Or use the fast hanging directly to connect with the D ring on the flashlight, which is more time-saving and convenient. In fact, the 1/4-inch screw hole on the side of the TM28 can be connected directly to the quick-hanging connector by simply mounting a mounting anchor of the same size. So from the perspective of carrying, the portable performance of TM28 is still in place. After the details of the appearance of the TM28, let's talk about it in actual use feel it, the beginning of this article mentioned that TM28 is a flashlight that takes into account the brightness and range, but also added a more intimate digital display function and efficient The straight-forward function, how are they performing specifically? We continue to say. The operation logic of the TM28 is still very simple, because the total control switch is a two-stage switch design, so during operation, the feedback by tapping and repressing is different. When the torch is off, press the switch to enter the ultra-low light (2LM) - low light (320LM) - Zhongliang (1000LM) - bright (2300LM) gear cycle; press the flashlight in the open state When the button is on, the flashlight is off, and then tap the button to memorize the last gear brightness. When the flashlight is off, pressing the switch again will directly enter the super bright (6000 LM) position. When the super bright mode is on, pressing the switch lightly will circulate between the two positions of high brightness and super high brightness. This design is suitable for use in outdoor search and rescue, where highlights and highlights are interchangeable, and exploration and search are interchangeable. When the flashlight is in any gear, quickly double-click the double-click button, then enter the flash position, tap again to enter the flash - SOS - beacon stall, TM28 flash is the inverter, here to mention In the process of improvement, I discovered that when the SOS file is turned on, the brightness is the highest bright position, although the highest brightness is more visible, and more power is required to be used. If there is an accident in the outdoors, The remaining amount of power is still very valuable, so I hope that the later version of SOS stalls will reduce the brightness of some, thus reducing the power consumed when waiting for rescue. When the flashlight is in any position, press the switch again for 1 second, you can lock the button. Because it is a dual-stage switch, light touch can trigger the flashlight circuit, so adding a lock is still very necessary, and then press the 1 second switch again. Can be unlocked. The unlocking method of the TM28 is very simple. It is easy to get started. Personally I think that the simple unlocking procedure here has mixed advantages and disadvantages. In some cases, I like to put the power into the bag, because the bag is likely to shake when I walk or exercise. Or squeeze, it is possible to coincide with the button to squeeze and more than one second, unlocked, so I hope the later version, and then set the complexity of the unlocking step. Let's take a look at its main display screen. When the main display screen is turned on, the home page defaults to the current value of the lumens and the current position. Pressing the main switch of the main display screen will display the current battery voltage in sequence—the current power level— Estimated time of use - current core temperature. Intuitive data display, at a glance, user-friendly to understand the operation status of the flashlight. In the charging process, the digital display shows the current battery voltage. When it comes to charging, you can't fail to mention the powerful 12V 1A power adapter for the TM26, because many flashlights with 18650 batteries were installed in the hands, so they are often charged. It takes about 5-6 to fully charge four 18650 batteries. Hours, and TM28 greatly exceeded my expectations. In the actual charging, after the battery is used up for the first time, it is inserted into the power supply and charged until it is full. It takes less than two hours and the charging efficiency is very high. The TM28 official standard has a maximum brightness of 6000 LM, a maximum range of 665 M, and a maximum light intensity of 127,200 cd. Each data is individually taken out and is a monster level. In the actual measurement, I truly appreciate its power. Personally, TM28 has found a suitable balance between long-range and long-range flooding for long-range shots. Standing on the hillside, after turning on the highest brightness, a beam of light hit the bottom of the hill immediately. The illuminated location was seen with the naked eye at that time. It was very bright, and the details of the exposed trees were very prominent. The spot design of the TM28 was also good. At the beginning, just got a flashlight and saw its four-lamp design. I was worried about whether its spot could be even, but after it came to the open-field where there was no light pollution, I was finally dispelled by this concern. The spot of the TM28 is quite uniform. As can be seen from the figure below, the irradiated hills have a large area of ​​light that spreads out along the focus of the light, and the light is also very uniform. Before seeing the official introduction to see TM28 built-in temperature control sensor, in order to prevent the flashlight overheating, combined with the lamp cooling substrate and the surface of the physical thermal design, from the structure of TM28 is to do a set of temperature control system. From the actual use of the test, the temperature value on the digital display screen can be seen that the brightest gear during the opening process, continuous heat to 60 degrees, this is the core temperature of 60 degrees, due to the core and hand there are barrels isolated, In addition to the heat loss, the temperature of the hand touch should not be so much, but still can feel a little hot, the higher the brightness, the greater the heat, this temperature is acceptable to me. The TM28 has a waterproof rating of IPX8 (two meters under water). For me, outdoor equipment is more resistant to heavy rain. Since the TM28 has a total of two buttons, a display screen, and a straight punch, it is just beginning to worry a bit about its waterproof performance. However, after a half hour of rain, the TM28 was working properly and there were no problems. As an audiophile, the TM28 is remarkable both in the industrial design and UI interface. Fast charging and built-in temperature control make the use more user-friendly, and the practical illumination distance and spot design are all I want. If there is any demand for TM28, that is, it is hoped to join the USB charging port, which can be combined with two ports. If you need fast charging, you can use the current charging port. You can use the USB port to charge the entire night. After all, in the current era of mobile phone chargers, compatibility and universality are the greatest conveniences. Fashion Pulls,Kitchen Pulls,Kitchen Cabinet Hardware,Kitchen Handles JESSO HARDWARE , https://www.china-jesso.com
