In addition to watching various home appliance digital evaluations, I usually like to watch short videos of various investors, so I know that the story of the Leifen brand is lost.
1. What brand is Leifen? Why is it so hot all of a sudden?
Leifen's fire, typical of strength and luck, is indispensable!
1. Where is the strength reflected?
Talking about high-speed hair dryers, you have to mention a certain sen, you can't get around. It is said that the strength of Leifen is strong, that is, the index parameters of the product can be equal to or even surpass the pioneer/king of this category, and everyone can look at the parameter part for themselves.
After all, the answer is the evaluation circle, high-speed hair dryers have been popular in recent years, and there are really many machines that have experienced the evaluation. There is a saying, up to now, these high-speed hair dryer products that are chasing a certain Sen in China can fight against a certain Sen's wrist, and it is still the Leifen family.
Just looking at paper data is very superficial, product competition is never paper data, supply chain is the core.
The respondent himself is a doctorate in mechanical engineering, and has been engaged in the research and development of mechanical and electrical products, which is also a product for the C-end. It can be said that for the vast majority of products in the consumer field, technology itself has never been the core threshold or core competitiveness.
No matter how excellent a product is, in less than 2 years, it will definitely be copied or even surpassed by peers. In the end, what can only be called a barrier can only be the supply chain, which is the first-mover advantage of market size brought by technology.
Through the golden window period of product leadership, quickly improve the supply chain, increase the proportion of self-research and self-production of core components, reduce costs, make prices low, and spread sales volume. It has a cost advantage, by reducing the profit margin to kill potential competitors, and then investing the profit into research and development to continuously improve product strength, that is, various indicators are higher and higher. Roll it up to stay in the leading position for a longer time.
Leifen, that's what it did. The core parts of the three-phase brushless motor self-research and production, its own production factory, do not take the OEM road. The advantage is that it can be strictly controlled by quality, not subject to people, and the cost can also be grasped in a very comfortable position.
The price can be seen, there is no 2299, no 1299, directly to the price of 599, and the current SE model price is even more 399. This is equivalent to saying directly to your peers: Friends behind, don't come, the car here is fast.
2. Why is luck important?
This is an era when wine is also afraid of the deep alley, there are many good products, but there is a lack of opportunities for more people to know!
Leifen was a short video of CEO and investor Wang Cen in February 2022 that broke the circle and became popular, and it can be popular because of such a famous scene: two bald heads discussed hair dryers for half a day!
Everyone looked at these two bald heads and not only asked: Do you two have a chance to use it? The discussion is so fascinating! But it is this point that pokes the traffic password.
Before this, Leifen has been playing traditional e-commerce channels, that is, Tmall, and Tmall understands the current situation, so it is tepid and generally performing. Leifen broke the circle of famous conversations in the private board meeting of investor Wang Cen and gained tens of millions of exposure. This is pure luck, no one expected it, Wang Cen did not expect it, and Leifen did not expect that it was originally just to enter an investor's private board to discuss some business with each other.
The CEO of Leifen is also very keen, seeing that the video broke the circle and exploded, the short video team immediately started, and the Douyin day does not set in the live broadcast room. This is also a kind of strength, executives have clear thinking, keen eyes, and can think of inheriting the next wave of exposure dividends.
The circle-breaking video exploded, and sales also increased, and then went to a live broadcast room where Luo Yonghao made a friend. If you can go to this kind of big live broadcast room, the product can't go up, which also shows the recognition of Leifen products in the big live broadcast room.
Initially, Leifen sold a few million a month, and now it has a maximum of 1 small goal per month. If you want to say that it all depends on strength, it is not objective, and it is not a fact that it is all about luck.
After the gossip chat, let's get back to the topic: how about a Leifen hair dryer? Here you need to define the type of hair dryer first.
Different from traditional hair dryers, Leifen Home is a high-speed hair dryer.
Now hair dryers are also developing in the direction of high-speed hair dryers, this is the trend of technical products in the category, why there is this trend, wait for me to slowly say.
Second, in fact, most people do not realize the importance of hair dryers
Before I did my own home appliance evaluation, like most people, a hair dryer was not something that dried my hair with hot air, nothing special.
When I walked through the review, I found out: Not really!
The hair dryer is chosen correctly, it can protect the hair if it is used well, and it will damage the hair if it is used incorrectly!
1. The basics of hair
In general, the hair shaft cross-section can be divided into three layers; Pizzoderma, cortex, medulla. The tissues of the hairy skins are stacked on top of each other to form a sheath, and the exposed edges of the sheath are called tricholasts. You can imagine that the scales of fish, which means that, play a role in protecting hair.
When we shampoo our hair, it is recommended to use warm water, because warm washing allows the hair scales to open and wash the dirt sufficiently.
If the water temperature is too low, the hair scales do not open, and the cleaning is not thorough;
If the water temperature is too high, the trichotomous scales will be damaged, resulting in frizz and dryness.
Generally, the temperature of shampoo should be about 40 °C in autumn and winter, and about 36 °C in spring and summer.
The hair scales are opened during shampooing, and after we simply wipe, the hair scales are not closed in time, and the nutrients of the hair will be lost through the open hair scales.
Therefore, after we finish shampooing, we should dry the hair in time and let the hair scales close to lock in nutrients.
That's why we use a hair dryer after shampooing: to help the hair scales close as quickly as possible.
2. Hair blowing is exquisite
There are three main factors that want to dry your hair quickly: high wind temperature, high wind speed, and close range.
However, you can't blindly pursue high temperature and close distance, which will damage the hair. Here I retrieved an SCI paper that used different treatments to dry the hair, and then used an electron microscope to observe the state of the hair scales:
A - Unwashed and unblown hair
B - Naturally dry hair after washing, room temperature 20 ° C
C-After washing with a hair dryer for 60 seconds at 47°C, a distance of 15cm
D-After washing with a hair dryer for 30 seconds at 61°C, a distance of 10cm
E-After washing with a hair dryer for 15 sec at 95°C, distance 5cm
It is clear that only the treatment of number C is more consistent with the normal state of unwashed and unblown hair. The number C is to blow the hair at 15cm away from the hair at 47°C for 60 seconds after washing, 47°C and 15cm are very scientific and reasonable temperatures and distances.
Natural air drying and other blow-drying methods have caused damage to the hair scales to varying degrees, and the cocking can be clearly seen from the electron microscope. Especially after the number E is dried at high temperature and close drying, the hair scales are obviously dry and cracked, and there are many small cracks.
When we want to dry quickly and do not want to damage the hair, the temperature should not be too high and the distance should not be too close. Then, there is only one left indicator of wind speed to make a fuss.
If the wind speed can be greatly increased, it can be efficiently dried while keeping the suitable temperature not too high, and the distance can also be pulled to the right distance without blowing.
This is also the reason why high-speed hair dryers are popular now. High-speed hair dryer is the inevitable trend of hair dryer, and everyone will use high-speed hair dryer to care for hair in the future.
Third, what is the difference between traditional hair dryers and popular high-speed hair dryers?
The core difference between traditional hair dryers and high-speed hair dryers I will briefly sort out:
1. The control system is different, which determines the core function
Traditional hair dryers mostly use open-loop control, temperature control is not accurate, and it is difficult to achieve constant temperature and air.
What does open-loop control mean? Why can't the air come out at a constant temperature?
The approximate meaning of open loop is that after the calculation of the design stage, in order to achieve the goal of air outlet temperature A, the motor speed is B, and the heating element power is C. Then, the control system sets the motor speed to B and the heating element power to C.
However, when the user uses the hair dryer, it will be affected by the fluctuation of mains voltage, environmental temperature changes, tolerance of the parts of the hair dryer itself, aging, etc., the motor speed is B, the heating element power is C, the air outlet temperature is not necessarily the value A.
The open-loop system can be understood as a straight line of thinking, and the starting point and ending point are a straight line, with no interaction.
As a new generation of products, the current high-speed hair dryer is generally closed-loop control, adding a temperature sensor to the air outlet to feedback the actual temperature of the air outlet to the control system in real time. According to the actual temperature, the actual air outlet temperature is too much than the set value, which reduces the heating element power, and below the set value, the heating element power is increased.
Through the flexible adjustment of motors, heating elements and other devices, the outlet air temperature can be stably maintained at the set value.
The closed-loop system can be understood as a circular thinking, the focus of the previous work cycle is the starting point of the next work cycle, and the information is interlocked and dynamically adjusted.
In addition, high-speed hair dryers generally have: motor stall protection, overcurrent protection, air duct blockage protection, heating element overheating protection, overvoltage protection, undervoltage protection and other internal functions to ensure the stability of the system. And these functions, traditional hair dryers are difficult to achieve.
Shopping tips: We pay attention to the product introduction page, to have a temperature sensor, some products also identify the temperature sensor monitoring frequency, such as 1 second 50 times (that is, 50Hz), 1 second 100 times (that is, 100Hz), such a hair dryer is basically a closed-loop control system, temperature control will be more accurate.
2. The motor type is different
As mentioned in the previous summary, high-speed hair dryers generally use brushless DC motors. The upper limit of the speed of the brushless motor is not high, the maximum reaches 20,000 ~ 30,000 rpm, if you want to dry the hair quickly, you can only add a heating wire to increase the temperature, so that the high temperature quickly dry the hair. However, high temperatures can damage hair, and it is not possible to achieve speed.
The speed of the high-speed hair dryer using a brushless DC motor can reach 100,000 rpm at will, which can quickly take away water by using high wind speed, and does not rely on high temperature hot air. The low temperature and high speed wind are friendly to the hair scales and protect the hair from the mechanism.
Shopping tips: choose a high-speed hair dryer, the motor is mostly brushless motor, but everyone still pay attention to the product parameters part, after all, a certain father will have a merchant selling the so-called high-speed hair dryer, but the motor will also have a brush, the speed can not go up, hang a sheep's head to sell dog meat.
3. Wind speed is very important, but it is not recommended as an indicator for horizontal comparison
The wind speed of high-speed hair dryers is generally higher than that of traditional hair dryers.
However, the wind speed you see on the product page may not be able to be compared horizontally. Because the method of measuring wind speed is different, the value obtained is also different.
The reason is very simple, I use the hair dryer at home to show it, the same hair dryer, the same gear, the same tachymeter. The first measurement puts the speedometer 10cm away from the air outlet, the second measurement puts the tachymeter 20cm away from the air outlet, and the two results show that there is a significant difference in the wind speed value, which is only the difference brought about by the distance.
There are many factors that can make the wind speed measurement different, so the wind speed value on the product page is a reference, which is not suitable for direct horizontal comparison of different brands.
As consumers, it is impossible to tell which method different products use to measure wind speed. Therefore, when comparing products, you cannot simply compare according to the values on the product page. The brand of the chicken thief will measure and label the data in a way that can measure higher.
Purchase tips: Look at the wind speed index as a reference, when comparing different products horizontally, this indicator is not very comparable.
4. Working noise
In terms of working noise, high-speed hair dryers will generally be made lower, more or less appropriate, there is no standard here.
However, this working noise is generally tested by manufacturers in the anechoic chamber, and then use this laboratory test value to make product announcements, and the values identified are generally the values in the anechoic chamber laboratory.
What our users measure at home contains background noise, so it will be different from the value of the manufacturer's logo.
But it doesn't matter, because the units are dB(A) weighted by default, and the noise values of different products can be compared horizontally.
Buying tip: The operating noise value can be compared horizontally by reading the value of the logo from the product page.
5. The weight of the whole machine
Men generally don't understand why they need to compare weights.
Long-haired ladies can experience that the lighter the weight and the smaller the burden of blowing with their arms for a long time, the more comfortable the person is.
Shopping tip: Doing a good job of lightweight is a plus.
Fourth, the experience of using Leifen SE
Don't fight anymore, I will show you this SE at home according to the above purchase points, actual combat is the gold standard for testing products.
1. Static display
In terms of styling, it is a decent high-speed hair dryer shape, Dyson, chasing, straightforward and other high-speed hair dryers are like this, this design style can make the size more compact, easy to carry or store.
My this one is a standard version with no other accessories.
2. Constant temperature test
First, test the legendary constant temperature air outlet, and use a temperature collector to measure the temperature curve of different wind temperature levels within 1 minute.
The thermocouple is placed at the blowing vent and remains unchanged.
The Leifen SE has two air speed and three temperature levels.
When the wind speed is in one gear, the characteristic measurement of the blowing air temperature in different wind temperature levels is shown in the following table. It can be seen that within 1 minute of start-up, when the temperature quickly reaches the program set value, it remains stable.
When the wind speed is in the second gear, the characteristics of the blowing air temperature in different wind temperature levels are measured in the following table. The temperature is even more stable than when the wind speed is 1 gear. Of course, my measurement itself will also have certain operating errors, sensor errors, and temperature collector errors.
However, this measured value can be used as a quantitative reference.
From the characteristics of the blowing temperature, the outlet temperature of Leifen SE has indeed remained stable. Only by achieving this constant temperature characteristic can users truly know themselves (blowing) the machine, blowing hair to master proportions, and quickly drying without hurting hair.
In addition, remind that the temperature of the air outlet is very high, and we should not use the air outlet of the hair dryer to scare people up close.
3. Wind speed test
In terms of wind speed, we still stand in the user's point of view and measure the wind speed at a distance of 15cm from the air blowing port: about 13.3m/s in 1st gear and 15.5 m/s in 2nd gear. If it is close to the air outlet, the wind speed will be higher!
Maybe everyone does not have a perceptual concept of this wind speed magnitude. Here I show the wind speed level of other hair dryers that have been evaluated before, comparing the two, I believe you can know what level the wind speed of Leifen is.
4. Motor
The motor is a moat part of Lefen, the motor is the core part of the high-speed hair dryer, and most brands are purchasing the motor back to the final assembly.
Leifen's motors are independently developed, independently manufactured, and self-sufficient. Self-developed three-phase brushless DC motor, the maximum speed can reach 11W rpm.
The advantage of self-sufficiency is that the quality control of the motor can be completely controlled by the brand. The probability of failure in your hands will be much smaller.
5. Working noise
Close the doors and windows to try to exclude external noise interference, the background noise in my home is about 42.6dB, and the working noise of measuring 2 wind speed gears under this condition is as follows: the noise of the first gear is about 83.6dB, and the noise of the second gear is about 86.4dB.
This noise level is basically at the same level as other high-speed hair dryers I have reviewed. This level is much better than the traditional hair dryer, mainly from two aspects:
The wind speed is much higher than that of traditional hair dryers, but the noise is better controlled;
The traditional hair dryer is turned to the highest wind speed gear, which may make a whistling sound, which is naturally understood by friends who have heard it, while the sound of the high-speed hair dryer is relatively compact and low, and it will not sound unpleasant.
6. The weight of the whole machine
In terms of weight, it is usually more than 400 grams in the hand, less than a pound. The experience of girls blowing long hair will not be bad. Lightweighting is done very well.
5. Summary of assessment
This article believes that the difference between high-speed hair dryers and traditional hair dryers is clear, everyone will give priority to buying high-speed hair dryers in the future, according to these elements I wrote to compare, don't be fooled.
I have also talked about Leifen's gossip and products in detail, and I believe that everyone will also have an objective understanding of Lefen. At least for now, Leifen is one of the best high-speed hair dryers in China, there is no doubt about this. When you buy a high-speed hair dryer, you can give priority to Leifen.
The advantages are clear:
It can dry hair quickly at low temperature and high speed, with minimal impact on hair quality;
The constant temperature control is very good, we don't have to worry about hot and cold when we use it;
After-sales service, warranty ah, other aspects of performance is also first-class.