Active Member
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[China]
Address: ADD: 1001, Building 1, Guole Technology Park, No. 1 Lirong Road, Longhua District, Shenzhen, Guangdong, China
Contact name:
SHENZHEN CRTOP CO.,LTD. |
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High Definition P4 Outdoor LED Advertising Screen Normal Refresh
High definition P4mm Outdoor advertising display
1, Using high-grade chip packaged LED lights, low gray and high brightness, fully guarantees the service life and display quality of the display screen, and adopts a low-turnover voltage constant-current driver IC. The advantage of this driver chip is that it can reduce the voltage falling on the output terminals of the IC. Reduce the power consumption, improve the power loss of the IC, and then achieve the effect of energy saving. The AC fan with large exhaust air volume is adopted, and the components are reasonably arranged to improve the uniformity of heat dissipation. According to the principle that the Vf of the R lamp is low, the 3.8V and 2.8V power supplies are used to supply power separately, reducing the excess voltage drop by 30%. The system sets the automatic brightness adjustment function, which can automatically adjust the brightness of the screen according to the ambient brightness, dynamic energy saving
2. Good waterproof performance, strong anti-ultraviolet, IP65 or above protection level, can deal with all kinds of bad weather. Green and environmental protection, the main light-emitting device of outdoor LED display is LED lamp beads, which are made of non-toxic materials, unlike fluorescent lamps that contain mercury, which will cause pollution, and LEDs can also be recycled.
The outdoor LED display has high brightness, the general brightness is 5500cd, and the brightest can reach more than 10000cd. Even under strong light, it can be clearly seen and the display effect is good.
Horizontal viewing angle: ≥120°
vertical viewing angle :≥120°
Visible distance :≥32 meters
Brightness uniformity: ≥97%
Operating Voltage: DC 5V
Power Requirements: AC: 220×(1±10%) V, 50×(1±5%)Hz
Maximum power consumption: 600W/㎡
Average power consumption :230W/㎡
Pitch:P2.5, P3, P3.07, P3.91, P4, P5, P5.33, P6.66, P8, P10
Module size:192x192mm,160x160mm,320x160mm,250x250mm,256x128mm
Cabinet size:640x640mm,768x768mm,960*960mm,500x500mm,1024x768mm 1024x768mm,
| project | Parameter | Remark | |
Basic parameters | pixel pitch | 4 mm | |
| pixel structure | 1R1G1B | ||
| pixel density | 62500/m 2 | ||
| Module resolution | 64 (W)* 32 (H) | ||
| Module size | 256mm * 1 28mm | ||
| Box size | 1024*768mm | ||
Optical parameters | Single point luminance, chromaticity correction | have | |
| white balance brightness | ≥6000cd/㎡ | ||
| color temperature | 3200K—9300K adjustable | ||
| Horizontal viewing angle | ≥120° | ||
| vertical viewing angle | ≥120° | ||
| Visible distance | ≥32 meters | ||
| Brightness uniformity | ≥97% | ||
| Contrast | ≥3000:1 | ||
Processing performance | Signal processing bits | 16 bits*3 | |
| grayscale | 16Bit | ||
| control distance | Gigabit Ethernet cable: 100 meters, Fiber: 10 kilometers | ||
| drive mode | High gray-scale constant current source driver IC | ||
| frame rate | ≥60HZ | ||
| refresh rate | ≥1920HZ | ||
| way to control | Synchronize | ||
| Brightness adjustment range | 0 to 100 infinitely adjustable | ||
Use parameters | Continuous working time | ≥72 hours | |
| Typical life | 50,000 hours | ||
| Protection class | Front IP65, back IP43 | ||
| range of working temperature | -20℃ to 50℃ | ||
| Operating humidity range | 10 %- 80% RH non-condensing | ||
| Storage temperature range | -20 ℃ to 60 ℃ | ||
| Electrical parameters | Operating Voltage | DC 5V | |
| Power Requirements | AC: 220×(1±10%) V, 50×(1±5%) Hz | ||
| Maximum power consumption | 600W/㎡ | ||
| Average power consumption | 230W/㎡ | ||
Our Services
1. 27 Years professional led display manufacturer,
2. Shot delivery time: 5-15days.
3. Factory price.
4. OEM and ODM service
5. We can design special product for you.
6. 30% deposit for producing,70% balance to be paid before shipment.
7. EXW, FOB, CIF C&F, FCA, DDU, colorful trade term.
1. After-sales service:
1) Service principles: response in time, solve problems as soon as possible and ensure the use.
2) Service period: In the Maintenance period of the LED screen body, free of all maintenance charges; After Maintenance period, only charge the material costs fees free of manual work fees.
3) Service scope: If the users find any problem that cannot be solved, please contact with our company, we can response in 24 hours. In order to shorten the maintenance time, Our Company will deploy some spare parts such as power and chips etc.
4) Under normal use and storage, Our Company will be responsible for the equipment.
2. Pre-sales service:
1) Our company can arrange professionals to conduct site installation and debugging in strict accordance with the requirements of the schemes and the original manual. If there is any special requirement, it is necessary to make changes of part installation scheme, we will coordinate with users. Our company can ensure the consistence of completion time and contracted time. Any problems caused by natural factors or man-made, we will discuss with client to find solutions.
2) Our company can train the users based on the manual. The training include system use, system maintenance and equipment protection
FAQ
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
A: Sample needs 3-5 days, mass production time needs 1-2 weeks for order quantity more than
A: Low MOQ, 1pc for sample checking is available
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.
A: Firstly, let us know your requirements or application.
Secondly, we quote according to your requirements or our suggestions.
Thirdly customer confirms the samples and places deposit for formal order.
Fourthly We arrange the production.
A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
A: Yes, we offer 2-5 years warranty to our products.
A: Firstly, our products are produced in strict quality control system and the defective rate will be less
than 0.2%.
Secondly, during the guarantee period, we will send new lights with new order for small quantity. For
defective batch products, we will repair them and resend them to you or we can discuss the solution
including re-call according to real situation.
| Q: What is the brightness, viewing angle and wavelength of the LED? |
A: Luminous Intensity is equal to the amount of luminous flux emitted into a very small solid angle at a defined angular orientation from the light source. The measurement for luminous intensity is the candela. Symbol is Iv. Viewing Angle is the total cone angle in degrees encompassing the central, high luminous intensity portion of the LED beam from the on-axis peak to the off-axis point where the LED intensity is 50% of the on-axis intensity. This off-axis point is known as theta one-half ( 1/2). Two times 1/2 is the LEDs' full viewing angle; however, light is visible beyond the1/2 point. Wavelength is the distance between two points of corresponding phase and is equal to waveform velocity divided by frequency. It defines what color human eyes could recognize |
| Q: What is dominant wavelength? Please specify the ranges of wavelength in red, green and blue color respectively. |
| A: Dominant wavelength is defined as the best range of wavelength showing the most natural color recognized by human eyes. Researches indicate that fixed colors with wavelength of 620-630nm (red), 520-530nm (green) and 460-470nm (blue), in fact mixed in a particular proportion, can get the pure white. That is, in display field, people use luminous materials with above wavelength to make "compounded" white more natural.In order to get a good balance white led display, we specify the led colors with wavelength within 4nm for each color |
| Q: Which chip vendors are you buying from? |
| A: It depends on the Customer's requirement. We can purchase from Japan, Korea, Europe, USA. We are using chips mainly from Taiwan |
| Q: What is the chip size you're using for outdoor display? How about indoor display? |
| A: For outdoor display, we're using 12mil chip for red, 14mil for both green and blue. Regarding indoor display, 9mil for red, 12mil for green and blue are currently adopted |
| Q: How much will the brightness of LED drop down after 1000hrs? |
| A: Based on the result of aging test, the brightness decay of green LED is around 5%-8%, while blue is around 10%-14% and red is around 5%-8% |
