Alas, have you noticed that both of them are outdoor LED large screens, some of which can attract the attention of the entire street, and some of which are like invisible? This is more particular about choosing a location than choosing a partner! Today we will break it apart and talk about where to install this outdoor large screen to become a "traffic harvester".

​​Three elements of site selection: visible, remember, and spread​​
Let me tell you the truth: Last year, a business district installed two screens at the intersection, but the advertising fee for screens in the south is three times more expensive than in the north - why? Nanping is facing the subway exit, and Northping is hiding behind the street trees! You have to grasp these three devils when choosing a site:

1. ​​Main channel of abortion​​: It must be a location that people can see as they walk, such as the entrance to the pedestrian street and the middle section of the shopping mall facade.
2. ​​Open view area​​: There are big trees and billboards around the 20 meters away."
3. ​​Visual Golden Angle​​: The installation height is between 3-8 meters, and the human eye is 15° upwards.

A catering brand installed screens on the exterior wall of the second floor of the mall, but was covered by the eaves on the first floor. In the end, it had to be dismantled and reinstalled, and more than 600,000 were thrown away.

​​Hidden paths for environmental adaptation​​
Don’t underestimate the ambient light! Last year, the LED screen in a coastal city looked very bright during the day, and it became a "mirror" at noon - the reflection could reflect the glass curtain wall of the opposite office building. Now all reliable solutions have to do two things:
• ​​Dynamic brightness adjustment​​: Automatic adjustment according to the light sensor (4000-7500cd/m² is the most secure)
• ​​Surface anti-reflection treatment​​: Use micro-prism-structured protective glass to press the reflectivity to below 5%.

If installed in a dusty industrial area, remember to choose an IP65 protection-grade box, and use aviation-grade silicone strips at the joints. The most exaggerated case I have seen is that the large screen in a mining area has to be replaced once every six months because it is not dustproof!

​​The life and death line of power supply​​
Here is a lesson from blood and tears: a scenic spot installed a large screen on the mountain, but the transformer capacity was insufficient, and the whole mountain tripped as soon as the screen opened! There are three things you must understand before installing the screen:

1. ​​Power supply radius​​: It is best not to be more than 150 meters away from the distribution room, as it needs to be thickened if it is too much.
2. ​​Three-phase balance​​: Three-phase power must be used for large screen power exceeding 30kW, single-phase power supply is waiting for smoke
3. ​​Emergency power supply​​: At least a diesel generator is available. Where the power cannot be cut off in the shopping mall, you must have a UPS

Let me teach you a tip for saving money: if installed in a commercial complex, you can talk to the property about "off-peak electricity use" and use the trough of electricity prices at night to charge the energy storage battery, which can save 30% of the electricity bill during peak days.

​​Don't step on the red line of regulations​​
Last year, a real estate developer installed a 200-square-meter "big Mac" on the roof, but because he did not submit an approval, he was forced to demolish it three days after the lights were on. These certificates are indispensable:
√ Outdoor advertising setup license
√ Building load safety certificate
√ Light pollution assessment report
√ Fire Protection Acceptance Certificate

Special attention: When installing screens around residential areas, the brightness must be controlled within 1.5 times the ambient light illumination, and must be automatically dimmed after 10 o'clock in the evening. A supermarket in a community was complained about the screen being too bright, and the penalty was even more than the money earned!

​​Maintenance channels must be reserved​​
The most bizarre installation I have ever seen: embed the large screen in the corners of the two walls, and repair it, and use a scaffolding to climb three floors! Reliable installations must be reserved:
→ One meter of maintenance space on the left and right
→ At least 0.8 meters behind the heat dissipation channel
→ Keep inspection wells on the ground (convenient to check the line)

If installed on a high-rise exterior wall, you must install an electric hanging basket track. The large exterior screen of a hotel has not left a maintenance channel, so it cost three times the normal labor cost to replace the power module.

​​Self-question: Why do some screens last ten years? ​ ​
Q: The LED screens in the two stores in Jiekou are installed at the same time. Why are the LED screens in three years and the whole store is still bright after eight years?
A: The secret is all in the details! Look at this set of comparison data:

After all, this location is like a blind date - just looking at the face is not enough, it depends on the "inner matching". Next time you choose a position, remember to bring a protractor to measure the viewing angle and use a decibel meter to measure the environmental noise. This is much more reliable than just looking at the flow of people. Do you think this is the reason?

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