ABOUT DISPLAY
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 (θ 1/2). Two times θ1/2 is the LEDs’ full viewing angle; however, light is visible beyond theθ1/2 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.
A :Every cabinet has fans for ventilation. We suggest customer to equip several industrial fans inside installation structure for ventilation instead of air conditioner.
A :Our customer would install the sign themselves, with the help of an installation manual provided by VisualLED, the instruction of the software is also included in the manual .It’s simple and easy to follow the instruction step by step. However, when the sign’s dimension has reached to 50-70m2, we suggest sending an engineer to oversee the project for you. Of course, you have to afford the cost accordingly.
ABOUT SERVICE
A:Yes, some of our displays support front access, you can take out modules and other accessories from front side.
A :We provide two years warranty for our products. That means two years of factory labor and components is provided for free, however the customer should pay for the round shipping cost for broken parts.
A :The main contents of training include items as below:
1) The components of led display and the function of each part.
2) LED display work flow
3) LED cabinets installation and dismantle.
4) System operation: Explain the operation of hardware and software.
5) Simple software troubleshooting
6) Simple hardware troubleshooting
A :Yes. We can provide any large led display with audio. The led display will be provided with a functional card, an audio amplifier, speakers (1 pair), video/audio switch, tuning equipment and a DVD if necessary. Of course these are optional devices with additional charges.
Training time: After aging test and before delivery Training persons:
technician 2 persons Training days : 4 days
Application software: 1 day Computer operation software:1 day
Hardware instruction and troubleshooting:1 day
Practice and question answer:1day
On-site training Training time : After the
installation of led display Training persons: 2
operators number of training days : 4 days
System software of display system : 1 day
Application software of display system: 1 day
The system configuration: 1 day
Simple trouble fixing : 1 day
OTHERS
A :We offer the installation structure design drawings for customers, and the design can well fit your installation conditions.