One, about the projector
When I was in junior high school, there was a projector in the large conference room of the school. In the memory, the projections at that time were basically HITACHI , SONY , and NEC. These Japanese products dominated the world. They were not only large in size, but also used a lot of heat. For high-power bulbs, the lamp has a short lifetime and low light conversion efficiency. The brightness will not keep up, and the price of the replacement projection lamp will be prohibitively expensive. In short, the early projection left me It is not well known that although projection can allow home to enjoy a giant screen like a movie theater, the high price and the small size of the home really have no place to accommodate such big guys as projection.
In the past two years, the domestic rapid development of projection equipment, such as springing up to the market, BenQ, very rice, purple rice, nuts, etc. have introduced a variety of home projectors, projection into the home of ordinary consumers, and the price is very high Close to the people, for a time a lot of people at home had a cinema addiction.
Xiao Bian, who has never played projection, couldn't resist playing this kind of projector today. Nut projector as a representative of the domestic projection equipment, today to try its first generation of the product P1, although now P2 have been listed, but for even a poor projector Xiaobian did not play, is still a novelty Playthings.
Second, packaging and unpacking
At first glance you see the front of the package. The black one looks like a cylindrical object. If you don't know which projector is inside, you can't see what the ghost is. Fortunately, there is a product description on the back or you can only see it. The front figure will think of what X ( fei ) O ( ji ) cup of wood there? Don't tell me about it. I don't believe you are so pure. The packaging design of nuts should be improved.
Nut P1 projector packing a little simple, only plastic box fixed, not even the basic sponge, which is certainly not favorable for express delivery.
Projector's boxing is also relatively simple. There is one projector, one AC power supply, one manual, one certificate card, and one wipe bag or a carrying case for the projector. There is no user's use details. Noticed.
Nut P1 projector uses MStsr-6A628VX quad-core CPU, Mali-4502 dual-core GPU , 1GB DDR3 internal operation, 8+8GB memory storage solution, 250 lumens brightness, plus dual-band WIFI , Bluetooth, AirPlay and other features, hardware configuration is still relatively mainstream, will not feel there is a significant Caton in use.
Nut P1 smart portable projector is cylindrical, visual length of about 25 cm, less than 10 cm in height , the first feeling of seeing is very small, and formed a huge contrast with the traditional projector in the impression. Although the projection is small on the hand, it is very heavy and weighs about 1 kilogram. Such a small projection can really be easily taken into a backpack and taken away.
The columnar projector has a reasonable and compact device with an anti-slip base, projection holes, a control switch, a functional interface, and a heat dissipation area on the upper, front, upper, and rear sides, and stereo speakers on both the left and right sides.
In terms of sounds, a 2X4W small cavity speaker is used on both sides, and the sound effect is OK. Of course, as a portable device, the effect is already available.
The standard is the Great Wall battery, the output voltage reaches 14V , the current reaches 4.2A , had to like this power supply, can provide fast charging for the nut P1 , greatly reducing the charging time, more convenient to carry.
Third, the details of the introduction
Next to the projection lens is the focus button, which requires a more accurate focus at different distances. Careful observation, the projection of the lens edge fragmentation of multiple locations, I do not know is the quality of their own control is not good or the cause of damage during the courier process, anyway, the lens is certainly broken corners, but in actual use seemingly no Found that the projection screen has a great impact.
The top of the collection of a variety of operating function buttons, these function buttons are rubber material, twill design can be non-slip, and feel comfortable, but there is a big problem is that it is easy to easily contaminate the dust, Xiaobian I wiped again and again Photographed, there are still a lot of small dust is not wiped off.
When the power button is charged or used, it lights up. Other function keys do not have a light function. There are certain difficulties in operation in the dark. In fact, you can improve it. A button with a slight light effect is better to operate.
On the back, there are cooling holes, power jacks , and input interfaces such as HDMI , USB3.0 , AV , and Micro USB . Different devices can be connected to the projector for playback. In addition, Bluetooth 4.0 , AirPlay, and WIFI with dual-band support are also supported . Features, you can get rid of the limitations of the wire, more convenient use of projection.
Fourth, install and use
The projection can be placed directly on a small table or chair. If you have a camera tripod at home, you can use it directly on a tripod to make it easier to move.
The use of projection is actually very simple. Just like the current smart TV, after pressing the power button of the projection, wait about 30 seconds. After entering the system, first adjust the distance between the projection and the wall, then calibrate the focal length so that it is projected on the wall. The screen is clear, and then connect to wireless Wifi to use.
This is the effect of the projection on a clean white wall. You can see the dark position in the upper right corner. I wonder if it is related to the lens breakage mentioned earlier. However, no obvious darkness is found in the normal playback video. Bit.
If you want to adjust the projected screen, you only need to adjust the distance between the projection and the wall, but if the projected screen is bigger, the brightness will be reduced, the screen effect will be relatively not so good, the size of the screen shot and the quality of the screen. It is proportional. The official said that the projection size is 40 to 180 inches, but in use, personally feel that the effect of about 40 to 60 inches is the best.
The nut projection system interface is based on an Android 4.4- optimized nut OS . It is similar to most smart TVs in use. The source of the film is the video source of the Central Broad Galaxy. The film source is rich enough to cover all age groups. Each of the various types, some exciting sources are charged . Of course, we can install various applications to obtain different sources. If one day SARFT will disable all of these live TV applications, the projector will also be injured along with the vast number of smart power supplies. Of course, if there is one day, we believe that our vast number of vendors will have new solutions.
The playing environment is carried out at night in an all-black environment. The projected screen is fairly clear. Although the effect is still somewhat different from that of TV, it is considered to be excellent. In the case of daytime or strong light, only the projected screen Do not be too big, but also meet the basic viewing requirements.
In the wireless state, in the 2.4G and 5G frequency bands for use testing, whether video-on-demand or live, Pu Qing, high-definition, ultra-clear, nut P1 can play smoothly, no obvious Caton phenomenon, indicating that the nuts The playback process is still excellent. Of course, fluency is related not only to the equipment being played, but also to the network. The network is not good, and the machine cannot play smoothly.
In addition, the projector supports 3D function, but there is no distribution of glasses, the nut manufacturers did not provide purchase, and there is no source for the moment, so can not be tested.
The keys of the P1 projector are not very good because the light is dark and the keys are not light during playback. At this time, we can use the mobile phone for operation and control. The official called a "nut control" of APP, we downloaded to a projector to any Android phone (iPhone not supported), and then make the connection after pairing with P1 in the same WIFI environment, the relative ratio of operation Good operation.
In use, Xiao Bian uses a mobile phone to operate the projector. Although it has a tactile response, each operation needs to turn on the phone again. It is a bit cumbersome and takes some time, but it is not as good as a Bluetooth physical remote controller, even if It can also be operated blindly in a dark environment, which is more convenient and practical.
V. Life and fever
The official nominally built- in lithium battery of 15600 mAh can last for 5 hours, but in actual use, it is basically more than 3 hours, which is somewhat different from the official nominal, but it has a certain relationship with the usage habits and the use environment of the network. It is enough for the occasional use of the daily routine. The charging time is very fast. It only takes more than one hour to fully refill the battery that is basically used up.
Through the use of a period of time, the temperature of the nut P1 is controlled very well, the middle position is hotter, the temperature of the cooling tuyere is only 54.1 degrees, and the temperature of the fringe is 37.9 degrees.
What surprised Xiaobian was that the temperature of the lens in use was not expected to be low, but after measuring, the maximum temperature was only 34.6 degrees.
Sixth, use the overall feeling
Through the trial, I feel that the P1 portable smart projector is really portable, not only small size, light weight, all the convenience of performance are excellent, and the price is close to the people, is a boutique in domestic projection, if you want to experience a It is indeed worthwhile to start with, both consumer and commercial. Whether you are at home or away, you can turn on your private cinema mode at any time.
Nut P1 projector is a good product, the only downside is that it is not easy to find a white wall at home or when going out, especially if the current home decoration will use wallpaper or other decoration, in order to use the projection as you like. Instrumentation is not an easy task either, so in everyday homes, the lack of projected walls or projection screens has greatly affected the widespread use of projectors.
However, in use, I feel that the following aspects can be improved:
1. Improved packaging design can be more eye-catching personality, internal packaging to increase product protection, can ensure the safety of transportation;
2, the top of the rubber buttons can be changed to plastic buttons to solve the problem of easy to stick dust;
3, properly increase the brightness of the projector, the brightness of 250 lumens when shooting over 60 inches of the screen is still a little dark, especially in the case of strong light conditions, the picture is not satisfactory;
4, increase the portable bag, 3D glasses, physical remote control, micro-casting tripod, projection screen and other accessories for buyers to choose, to protect the projector at the same time more convenient for users to carry and operate.