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[China]
Trade Verify
Address: Building C/D,longrun industrial area ,NO.1001-3 Xihuan Road Shangxing West Industrial Park, Shajing street,Bao'an District,Shenzhen,China
Contact name:Joyce
Shenzhen Longrun LED Optelectronic CO.,LTD |
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Verified Suppliers
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HD Video Led Big Display , Advertising Led Tv Display Board Ultra - Light
2. With pure golden wire connection in LED.
3. Grand A row material for module frame and mask.
4. 4 layers PCB and copper plating thickness > 18mil.
5. Stainless steel screws when assembly.
6. Disassembly and assembly are quick and easy.
7. Three years warranty.
HD video huge big advertising led tv wall Parameters:
HD video huge big advertising led tv wall Module Details:
HD video huge big advertising led tv wall of contrast photo:
Aging room of HD video huge big advertising led tv wall
Site : In Germany for Aging room of HD video huge big advertising led tv wall
HD video huge big advertising led tv wall of history .
LongRun perseveres in carrying on its relentless pursuit if excellent quality, focused on full color LED display's R&D, sales and service. It has its products successfully achieved CCC, CE, FCC, UL etc professional certifications recognized internationally. On quality control, it implements strictly and perfectly under ISO 9001:2008 quality certification system. In daily practices and applications, it emphasizes on 7S management standards. During producing process, it carries out strict quality testing on all processes of IQC, IPQC, QC, CFQC, QA and strict management on supply chain. Until now, LongRun has independently developed and manufactured a complete range of divercified display products. They have covered more than 40 countries with over 3,000 success cases in above 10 different application fields including advertising media, stage entertainment, sports stadiums, urban lighting, traffic guidelines, financial institutions etc. LongRun's LED display has own great favor from numerous clients home and abroad for its high definition, easy installation, smart design, stable quality etc.
HD video huge big advertising led tv wall for packing
HD video huge big advertising led tv wallfor shipping
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%
Our Service:
1. Warranty: 2 years
2. Replacement: 1:1 replacement for defective product
3. Online technicial support: Long distance online technicial support for 12 hours from 8:30am to 8:30pm and from Monday to Saturday.
4. Free training: free training in our factory is welcome and available on working days.
5. Professional advice: all clients could get our professional advice on cases or projects etc.
