The so-called P is the pixel pitch of the LED display, this indicator is mainly used to identify the pixel density of the display, the smaller the value behind the P, the higher the pixel density, the clearer, of course, is not exactly the smaller the better, the applicable model is mainly related to the use of the occasion.

Longevity, although one of the main characteristics of LED, but the overall life of the LED display many factors that affect the life of the display are: product quality, the use of the environment, in general, because the outdoor display has dust, sunlight, rain and other unfavorable factors, the service life is relatively short, usually below 5 years, while the indoor display is usually 5-8 years. In particular, we need to point out that in the actual use of the process, we found that the quality of the LED display and installation experience is often the most important factor affecting the life of the display, many LED electronic display often less than 3 years to damage, and the quality and installation has a lot to do with.

LED display from the beginning of life to long life, environmental protection and known, the only drawback is the lack of resolution, close to see a sense of grain, in fact, the development so far, LED has been sure of the resolution of the problem, the latest technology has been able to surpass the LCD LCD clarity, and on this basis, a wide colour gamut, high gray, reflected in the visual is more vivid and bright colours, the only shortcoming is the higher cost, I believe that with the large-scale application of cost will soon be reduced.

we encapsulate the lamp ourselves, we have record for every screen we produced. it's easy for us to find out your older screen's data, according to inference in theory , we make new tile which will uniform to the older screen at utmost degree.   we have  professional white balance room . u can send back us one module of  the older screen, we test this modules' optical parameters. we make new tile according to these parameters. the new tiles will be almost the same as the older one

The life span is decided by many conditions ,  such as the total using hours per day , the operational ways  etc , so we are unable to give u the accurate hours of life span , but if u used the screen in a right way , 5 or 6 years will be no problem  normally , our warranty is 3 years with  support . we will provide free spare parts for replacement if any problem belongs to us during this period ( delivery  cost paid by customer) ; 3 years later , we provide spare parts for replacement base on certain charge , we will also suggest u buy some spare parts for future use based on our experience before exporting .

The quality  of LED display  can be determined by a lot of factors , like LED chip, encapsulation techniques  and equipment , raw materials , quality control procedures , size of modulars, flatness of cabinets , power supplies.AC and DC wires , and clean of workshop etc , All of our products are produced in meeting the ISO9001  production procedures and even for our LED lamps production , our quality control strictness are national quality controller standards .there are many factors to affect the quality of a screen , some value method should use machine to test . Usually people value the quality of a display thru 3 major sides by eyes . one is the color uniformity . The white color should be as white as snow , rather than a little pink or yellow or green , the other is viewing angle . if the surface of a screen is very flat , and LEDs  with good quality .  u will find the screen with big viewing angle 

Performance , stability , durability and service ability . u may check the color uniformity. white balance , viewing angle. stability and durability are determined by many aspects such as the quality of raw component, manufacturing experiences and procedures , and designs etc . we wil talk about serviceability later