In domestic brands of hand-held flashlights, Narede’s flashlights have always been favored by the majority of tube-mates. In the recent military formation’s 90th anniversary parade, there is also a party team’s PLA helmet with the Norader flashlight. , I do not know which of the leadership arrangements, equipped with flashlights on the helmet scene was seen by many carefully netizens, but also triggered a tactical flashlight on the helmet for a piece of discussion. Not to mention that this match is not really good for all aspects of Narrative's flashlight. Each of the many unique models of the Narendron flashlight family has its own unique features, and is equipped with the chance to test today's Narita E51. Not much gossip said the following began to talk about the test results and personal feelings of the various aspects of the E51.
First of all, from the packaging, Narella's outer packaging is very concise, simple and elegant, from the packaging point of view is very high-end atmosphere on the level of feeling. From the information marked on the outer box, it can be intuitively seen that the brightness of this flashlight is up to 1000 lumens.
The interior of the flashlight box is quite compact. 
All accessories provided. In addition to the flashlight body, the original factory is equipped with a 2600 mAh 18650 battery (the battery is directly installed in the battery compartment when shipped from the factory), holding clips, hanging strong, micro usb charging cable, two spare waterproof O-rings and instructions.
The overall size of the E51 is moderate, with a measured length of 131 mA, a barrel diameter of 22 mm, and a 27 mm lamp base, plus an original battery weight of 128 g. For the 18650 straight flashlight, it is a normal range of small straight compared to other brands. The hand feels good on the hand, and the corners of the lamp head are designed with multiple raised corners, which can well play the anti-rolling effect on the plane.
The original device is equipped with a 2600 mAh battery. The positive electrode is a large contact and is about 1.5 mm taller than a normal 18650 battery.
After unveiling Narita's label, the batteries were ICR 18650 batteries. The label is 3.6V, which is different from the 3.7V marked by the external label. It is not known whether the batteries used by the manufacturer for each pass are the same.
The barrel body is made of aerospace grade reinforced aluminum material and treated with three types of hard anodized surface, especially the lamp cap has a particularly good texture. The cross pattern in the middle and tail of the barrel is not slippery.
The wick focuses the full cup of yellow water
There is a large concave surface on the tail switch, the switch is more prominent, this design feels very good when pressing the switch, but this design of the flashlight can not stand upside down on the plane lighting, and put it in the bag It may happen that the switch is accidentally touched.
The chamfering of the lanyard hole has a treatment, which can improve the service life of the hand rope. At this point in detail, many brands of flashlights have not noticed, and often the parts that cause the lanyard to connect the flashlight will be worn out in a short time.
One of the highlights of the E51 is that it can directly charge the flashlight battery through the hidden charging port on the head of the barrel. There is a USB logo on the lamp head. If you need to recharge the lamp directly, you can see the MICR USB charging port. The barrel is engraved with the flashlight code and the battery positive and negative directions. It is said that although the lamp head can be twisted and extended, it does not have the effect and function of focusing.
The holding clip is detachable, and there is a positioning groove at the connection with the barrel body, which can prevent the holding clip from sliding to the left or right. The black paint on the corners of the stainless steel clips is easy to fade in the rubs during use, which is a minor problem in many flashlight brands.
In the lanyard design of domestic flashlights, the individual feels proud to do a better brand, although the lanyards that Narenda equipped do not have arrogance but it is a very meticulous, adjustable buckle. The operation is very convenient, there is a connection line of the rope to do a lot more than other brands, the life expectancy should also be increased.
E51 brightness is 3 levels. The maximum brightness is 1000 lumens, the mid-range is 270 lumens, and the low-lightness is 25. If you press the switch without pressing it down, you can light up the top gear for a short period of time, release it and turn it off; press the switch once to lower the default to turn on the highlight. In 3 seconds, repeatedly press the switch or touch switch brightness 3 cycles, press the low to lock the current brightness level; in the closed state, press the switch twice in a row to directly enter the burst mode.
Measured using the fast switching mode of the Narella E51 with a relatively quick and easy, very simple and practical. Whether it is as a tactical flashlight or everyday use, it is very good.
The light cup and mirror light transmission effect is still good.
Waterproof test â–¼
The waterproof performance test under the lighting state shows that there is no water seepage in the lamp head or the tail battery compartment after a long time immersion. The IPX-8 waterproof performance can be properly dealt with under various conditions in daily conditions. In front of the flashlight USB, Narita E51 adopts such a hidden head-type charging port design, which greatly improves the waterproof performance, and is much better than the waterproof effect of silicone plugs used by most manufacturers.
Riding a flashlight at night is also very good.
Suspended tactics die can also be used to sneak.
With props to a little tactical atmosphere.
Charging test â–¼
The MICR USB charger in the lamp holder can be used either as a computer USB or a mobile phone charger. The 500mAh output from the computer is used to charge the flashlight. The test time is fully charged in about 4 hours. The charging status indicator is red and the charging indicator is changed. Green.
Charging completion status
Lightness Lighting Measurements â–¼
Light color contrast, the third from the left for the Nora E51, E51 light color between white and cold white.
1 meter distance highlights the measured result is 10310 LUX
1 meter distance bright result 2660LUX
1 meter low light 295LUX
In the indoor environment, the opponent's temperature control test was continuously measured for more than 17 minutes in the highlighted state, and an important node was selected for dynamic display. The room temperature was maintained at about 25 degrees during the test.
Light the flashlight for about 1 minute and the temperature rises to 35.9 degrees. At 2 minutes, it rises to 40.8 degrees. At 3 minutes and a half minutes, the temperature is maintained at 43.4 degrees without heating. The temperature is controlled at 43.4 degrees. At 6 minutes, the temperature dropped to about 42.7 degrees, and it stayed on for approximately 17 minutes. It remained slightly floating in this degree.
During the test temperature control, the brightness of the flashlight also gradually decreased to approximately 2700 LUX for a long time. See the figure below.
Lighting effect measuredâ–¼
Night highlights, mid-brightness, and low-brightness test dynamic contrast picture
Close-range three-speed dynamic lighting test.
Distance measurement effect
Night static lighting effect test
Long distance third gear lighting effect comparison test
Summary: Narella E51 has a concise yet beautiful appearance; simple and practical switch operation method; 1000 lumens brightness is enough for everyday use in various environments, barrel MICR USB port is a very practical function. I am not very satisfied with this except that the tail of the flashlight cannot stand. For the design and practicality of this flashlight, I think there is nothing wrong with it. It is a type of flashlight that people will like to get started with.
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