- Die-casting aluminum cabinet design, allowing any splicing with
high precision,unique heat dissipation design, to ensure the safe
and stable operation
- Full black lamps, high contrast ratio, more vivid picture, richer
colours, High consistency, no dead angle and no colour deviation.
- Allow single point of brightness, chroma correction, to solve the
problem of bright colour inconsistency.
- Supports full front maintenance, more convenient installation and
maintenance.
- Supports various installation methods such as wall mounted,
stacking installation.
- Redundant power supply design, dual signal input and output,
automatically detecting the failure and switch, ensure the whole
system's stability and reliability.
FAQ
Q1. Can I have a sample order for led light?
A: Yes, we welcome sample order to test and check quality. Mixed
samples are acceptable.
Q2. What about the lead time?
A: Sample needs 3-5 days, mass production time needs 1-2 weeks for
order quantity more than
Q3. Do you have any MOQ limit for led light order?
A: Low MOQ, 1pc for sample checking is available
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5
days to arrive. Airline and sea shipping also optional.
Q5. How to proceed an order for led light?
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.
Q6. Is it OK to print my logo on led light product?
A: Yes. Please inform us formally before our production and confirm
the design firstly based on our sample.
Q7: Do you offer guarantee for the products?
A: Yes, we offer 2-5 years warranty to our products.
Q8: How to deal with the faulty?
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%
|
