preface:

The intelligent LED mini projector has the characteristics of both projector and intelligent TV. It can not only extend the screen size like the projector, but also access the unlimited network through WIFI connection like the intelligent TV Internet film and television resources. At the same time, it also has the advantages of long life, high reliability, low power consumption, maintenance free, and small size. Therefore, the intelligent LED micro projector has always been favored by the industry. It represents the future of projection and smart electricity It is regarded as an important development trend, but it also has a short board that has plagued its development for a long time, that is, the display brightness is insufficient, and the viewing effect in the daytime is difficult to meet the satisfaction of many families, which is why it has not been very popular so far One of the important reasons accepted by many families. In order to solve this problem, Kuletv invested huge manpower and material resources, and it took more than a year to finally develop an intelligent micro projector that is not afraid of sunlight—— Kuletv S3, this mini projector with over 1000 lumens, was hailed as a wolf by industry peers once it was released! In order to satisfy the curiosity of the majority of micro investment enthusiasts, we jointly launched Kule with Kule TV The trial activity of the flagship version of the S3 smart projector provided a rare free trial opportunity for everyone. It's my great honor to obtain this once-in-a-lifetime trial qualification. This smart mini projector can also be seen in the daytime What is the actual effect? Please follow me to experience the actual performance of this Cool LeEco S3 projector.

1、 Product unpacking

The packaging box of Kuletv S3 is a black square hard paper box. The hardness of the box is very good, and it does not deform when pressed by hand. In particular, the supporting strength of the corners is very high, which makes the packaging box have good pressure resistance Sex. The overall design is simple and lively, with only a large stamping "S3" logo printed on the front, indicating the identity of the product.

The back of the packaging box is printed with various production information of the product and the QR code of the official community and WeChat official account for the convenience of users. There is a self-adhesive sticker on the upper side of the box, which is printed with product name, specification, production serial number, bar code and other information. In addition, there are three technical standard marks, indicating that Kuletv S3 has advanced display technologies such as 4K, 3D, DLP digital light processing. The "Love Film • Love Life" on the lower side of the box is an advertising slogan that has been used by Cool Music for a long time, and it also conveys a kind of life attitude of movie lovers. The English trademark of Kuletv is printed on both sides of the packaging box, and there is a white extension line on the left and right of the trademark, making the whole side design simple and not monotonous.

The packaging box of Kuletv S3 adopts the box drawing design. The gap between the inner box and the outer box is very small, and the fit is very tight. After the inner box is pulled out, the product instructions and FAQs are on the top. The instructions are printed simply I briefly introduced some settings and operations of the machine. The FAQ is cool LeEco has collected the answers to some common questions that users encounter in their use. They have all been introduced above. This Q&A explanation is very considerate, which is convenient for users on the one hand, On the other hand, it also reduces the work pressure of the official customer service, and sees the big from the small. It can be seen that Kuletv is also very careful in improving the customer experience while making products. The protective measures in the packing box are in place, The specially customized sponge realizes the all-round package protection of S3 to ensure the safety of S3 during transportation; At the same time, S3 is also covered with a soft plastic protective bag to protect the body from scratches. S3 in the box The lower part of the machine is the accessories area. It can be seen that different from the scattered placement of accessories in the packaging of many other brands of products, all accessories of Kuletv S3 are packed in their own individually designed boxes, so that the inside of the packaging box Keep it simple and flat, and also effectively avoid friction and collision between each other, protecting the safety of accessories and host.

The power adapter of Kuletv S3 is large and full. From the nameplate, you can see that its manufacturer is Hangjia. Friends who are familiar with computer DIY must know this brand. It is a very excellent PC The source manufacturer has occupied the first place in the domestic PC power supply industry for many years, and the power quality produced by Hangjia is naturally not bad. The cable of the power adapter is also long enough to meet the needs of ordinary families.

The remote control of Kuletv S3 is an infrared and bluetooth dual-mode remote control. Before it is paired with the host, it is an infrared remote control. After it is paired, it is a bluetooth remote control. Except for the on/off key, other keys can operate the projector from any angle. After pairing, the on/off key is still an infrared signal. When you turn on and off the machine, you must aim the remote control at the infrared receiver behind the machine, This is a little inconvenient. Although the official forum has an upgrade program, it can only solve the power off problem, and the power on button should still be aimed at the machine; The remote control adopts a 14 key design, which has two F keys more than the general Bluetooth voice remote control. These two keys are used to manually adjust the focus of the projector. The soft and hard keys of the remote control are moderate, and the touch is comfortable. There is a sound pickup hole on the top of the remote control. When using voice to control, you should try to make the upper part of the remote control closer to this hole, or it may not be recognized correctly. The back of the remote control adopts an arc design, which conforms to the ergonomic principle. It is very comfortable to hold the remote control in hand. The remote control is fitted with two ordinary No. 7 batteries, and the battery replacement cost is low.

2、 Appearance interpretation

The mainframe of Kuletv S3 is square in design, and the whole body is mainly composed of stable black. The mirror arc edge of the top cover is designed like 2.5D glass, which is very eye-catching. In the center of the top cover is the English trademark logo of Kuletv, LOGO and others The circle on the face also serves as an indicator light. The lower part of the LOGO is designed with an induction device for S3's innovative gesture control function. The three sides are bonded to the wishbone aluminum titanium alloy metal mesh frame, which looks very good overall The atmosphere is stable. The appearance size of S3 is 225 * 225 * 53mm, which is not too small in the micro projection, but it has an innovative wall mounted design. With special reflector components, S3 can also be seen on the wall The computer does not occupy desktop space, improving the utilization rate of indoor space.

The lens of Kuletv S3 is designed on the right side in front of it. There is a lens cover outside the lens, which can effectively prevent dust when closed. The lens cover also has the function of the machine switch key. Push the lens open to start and close the lens Turn off immediately. S3's unique on-off mode and gesture control function design enable the whole body to be keyless, making the body more simple and beautiful. S3 lens adopts 7 optical plated precision lenses and metal sealed lens barrel , ensuring the first-class quality of picture quality. S3 has a projection ratio of 1.2. In order to make it easier for everyone to understand, I will first popularize science here. The projection ratio is the ratio of projection distance to screen width, and the formula is: projection ratio=projection Distance/picture width. That is to say, compared with other projections with high projection ratio, S3 can project a larger picture size at the same distance, and small apartments can also realize the dream of seeing a large screen.

Cooletech S3 uses OSRAM LED cold light source, with a service life of more than 20000 hours, which is much better than the traditional bulb projector, and also has lower energy consumption. The lens of Kuletv is very clear bright. There is a small autofocus probe on the left side of the lens. This inconspicuous device plays a key role in the autofocus system.

HIVI logo represents that the audio of Kuletv S3 has Huiwei origin. Huiwei is the world's top speaker and speaker manufacturing multinational company. Many famous audio manufacturers in the world are using HIVI's loudspeaker Its localization production strategy makes it have excellent cost performance. With the S3 of Huiwei's HI-FI sound unit, the sound effect is worth looking forward to. This experience will be explained in detail later.

The middle frames on both sides of the fuselage are bonded with the front side by a piece of wishbone aluminum titanium alloy metal mesh. The S3 speakers are located on both sides of the fuselage. Many uniform holes distributed on the surface of the metal mesh on the middle frame are sound conduction holes At the same time, it is also conducive to the heat dissipation of the fuselage.

The rear side of the fuselage is the heat dissipation and interface area of S3. Heat dissipation is very important for the projector. Because of the principle of thermal expansion and cold contraction, the heat will displace the lens in the lens, which is limited to the relative internal space of the micro projector Narrow, so the heat dissipation design is a difficult point in the design of LED micro projector, and the design is very difficult. Kuletv S3 adopts a precise metal optical machine body, and is equipped with an independent cooling module for the DMD chip Dozens of radiating fins and suspended fans make it very efficient. Through observation and measurement all day long, the fuselage heating condition is well controlled, especially the lens position is almost the same as the room temperature.

The cooling device inside the machine can be seen through the cooling hole at the back of the body. There are many compact metal fins on the cooling device. These metal fins, combined with the internal cooling fan, can Accelerate the heat dissipation of the machine.

S3 has very rich interfaces. Two USB interfaces, HDMI2.0 interface, miniAV interface, DTMB interface, RJ45 network interface, DC interface, 3.5mm audio output interface, and power adapter interface meet the daily needs Need is not a problem at all. There is also a hidden infrared receiver on the backplane to receive the remote control signal on the back.

The material of S3 fuselage bottom adopts sanding treatment, which is more wear-resistant and will not produce fingerprints. There is a copper threaded interface at the bottom center, which is prepared for matching with the projection bracket and the hanger.

A heat dissipation window is also designed at the bottom of the fuselage to further enhance the heat dissipation of the fuselage.

The four legs at the bottom of the fuselage can be adjusted up and down to adjust the height of each leg of the projector and adjust the levelness of the projected image.

3、 Experience

After learning about the appearance and structure of Kuletv S3, let's begin the practical experience. Before the experience, I will briefly introduce its various functions and features, S3 adopts the new P1A-LED high brightness light source and dual light path engine design from Osram, Germany. The maximum design life of the light source is more than 30000 hours, and the maximum brightness can reach about 1200ANSI lumens. It is the first LED intelligent projector with brightness exceeding 1000 lumens in the world. In terms of resolution, S3 is equipped with Texas Instruments 0.45 "1280 × 800 HD display chip (supporting 1080P/ 4K@60Hz In terms of processor, S3 uses a new 64 bit CortexA53 architecture CPU processor, Mali-T720 3D GPU, which can stably and smoothly run whether you watch 3D giant screen HD movies or play OFFICE, presenting 300 inch 6.6 meter wide delicate and gorgeous giant screen images.

In terms of innovative black technology, Kuletv Technology has equipped S3 with Huiwei HiFi Bluetooth speaker, auto focusing/dynamic real-time focusing, one button power on, gesture remote control DTMB terrestrial digital TV receiving system, innovative wall mounted reflection projection, coaxial audio output interface, mobile phone/tablet/PC end wireless same screen, wishful air ventilation lens design and other technologies, Kuletv is also struggling to comprehensively improve the user experience this time!

The boot design of Kuletv is very unique. It uses the lens cover instead of the physical key. When the lens cover is pulled open, the machine will start immediately The status light flashes blue and purple colorful light, and the projection lens casts a projection beam.

The status light on the top of the machine flashes dynamically, which is really beautiful.

The innovative gesture control function of Kuletv S3 replaces the physical keys of the body, which is easy to use in the actual experience. The cursor can be moved by moving up, down, left and right with the gesture, and the operation can be confirmed by pressing down clockwise Circle to return to the previous operation.

S3 has auto focusing and real-time dynamic focusing functions. Compared with the maddening human eye electric focusing system, it is really easy to use S3's auto focusing experience. Auto focusing can be realized when the player starts up If the distance between the projector or the screen changes, or the body lens shifts due to thermal expansion and contraction, S3's dynamic focusing technology will work, automatically adjusting the focus, so that the projected image always remains clear.

After the auto focus is completed, S3 enters the main interface of the cool OS system, and you can see that the following picture was taken at 10:44 a.m. after the curtain was closed. You can see that its clarity is very good, and the display effect is completely comparable to that of TV. It can be seen that the true kilolumen projection of Kuletv is not a false reputation. According to the test report of the China Institute of Electronic Technology Standardization, The lumen level of Kuletv S3 has reached 1081, which cannot be faked. It is completely genuine. KuOS system is an operating system developed by Kuletv based on Android system. The system interface is very simple. At the bottom is the system's function menu area, where the system functions such as setting, signal source, wireless screen transfer, file management, and one click cleaning are all displayed. The central position of the interface is its application software area. The system integrates film and television, music, office, applications and other application software. Only the four commonly used software are displayed in the functional area. At the top of the interface, weather conditions are displayed on the left, and projection status, time and WIFI connection display icons are displayed on the right.

The following photo is taken near noon after opening the curtains. It can be seen that although the projection picture is a little white compared with the above picture, it is no problem to watch the film normally.

Kuletv S3 supports the function of wireless screen transfer. Whether it is a computer, an Android system terminal or an Apple system terminal, it can project the screen to S3.

S3 has three brightness adjustment modes: standard mode, office mode and energy-saving mode, which can be adjusted according to the actual use scenario. The actual experience shows that there is little difference between standard mode and energy-saving mode.

The trapezoidal adjustment function is also very useful. When the angle of the projector is moved to make its projected image trapezoidal, the automatic correction system will automatically adjust the trapezoidal state to restore the displayed image to a standard rectangular image.

S3 projection mode can be divided into four types: front mounted projection, reverse mounted rear projection, lifting front projection and lifting rear projection. The projector can find a suitable projection mode under various positions.

The signal sources of Kuletv are very rich. Two HD inputs are AV signal input. In addition, S3 is the first to use DTMB input in projection. The introduction of DTMB signal enables S3 to watch free digital TV even when there is no network. It really has the necessary equipment for a full-featured home theater. The input interface of DTMB is an unusual mmcx socket. The antenna of DTMB purchased cannot be tested temporarily because the plug does not match.

The wireless same screen function also has an entrance in the main interface. S3's powerful intelligent interaction system makes it possible to change a small screen into a large one.

The file manager of Kuletv S3 uses a small white file manager, which is a relatively good file manager. The functions of the manager are very rich, and they are often used.

Kuletv S3 adopts active shutter 3D display technology, which can play offline 3D video, but cannot be viewed online for the time being. I hope the subsequent firmware can solve the problem of online viewing.

According to the official introduction, S3 has the H.265 4K decoding capability. In the actual experience, 1080P video is played without pressure, clear without jamming, and true color restoration. However, when playing the 4K source, several test films can not be played normally. I don't know the reason. I hope the manufacturer can study and solve it, and optimize it in the subsequent firmware upgrade.

Kuletv S3 has built-in Galaxy Kiwi video software, Galaxy · Kiwi Fruit is broadcast, controlled and operated by the licensed party Galaxy Internet Television Company, integrating all high-definition authentic video content of China's largest video website iQiyi  。 Software The picture is clear, the broadcast is smooth, the film and television play resources are quite rich, and various popular TV plays, boutique independent plays, overseas movies, and a large number of variety entertainment Music programs, high-quality animation, etc. However, due to too many paid programs of Galaxy Kiwi, too high fees for VIP members, and too many and too long free program advertisements, it has been widely criticized.

S3 has a built-in HIFI music application software, in which various types of music are classified in detail, and the content of the song library is also complete. After listening to several HI-FI sound quality test songs online, I really felt the powerful sound effect of Huiwei HI-FI. The high pitch area is loud and clear, the mid pitch is deep and delicate, and the low pitch area is also good. The voice is very restored, and the volume is adjusted to the middle section for the best effect.

S3 has built-in office components, and PPT, WORD, EXCEL, and PDF documents can be opened and read normally. These office software, together with S3's powerful hardware configuration and ultra kilolumen brightness, make S3 enough to deal with some small and medium-sized office meetings.

The built-in application store of S3 adopts the Chipper market architecture, but there are relatively few applications on it, and the update is also slow. It is recommended to replace other cooperative software.

At the right end of the main interface of the cool OS system is a list of all its software. The software not shown on the main interface can be found here.

Open Kule TV's WeChat assistant and follow the official official account to get official WeChat services. You can also use the WeChat remote control on the official account to control S3.

4、 Summary

Through many days of experience, I am very satisfied with the overall performance of Kuletv S3. Its stable and atmospheric appearance is irresistible. The display effect of ultra thousand lumens makes it a truly all-weather micro projector. The injection of Huiwei HI-FI audio unit makes the sound effect of S3 shocking. The use of KuOS system makes the projection more intelligent, The access of DTMB signals enables you to watch programs for free even if there is no network. The projection ratio of 1.2 makes it possible for small households to watch large screens. Of course, S3 also has some shortcomings. For example, the problem of no image in 4K play and the problem of 3D video online play all need subsequent firmware improvements. But these small problems cannot hide its super strength. Its advantages are enough to make it replace the smart TV and become the leader of the living room. To build your own giant screen home theater, S3 is enough.

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