1. The "hide and seek" game of power supply location

Brothers, looking for an LED screen power supply is like looking for a hidden birthday gift from your girlfriend—it’s clearly right in front of you, but you can’t find it! Don’t worry, let’s crack this “visual magic” first:

​​1. The "energy capsule" behind the box"​​
The power supply of most LED screens is hidden in the groove on the back of the box. This design is like the battery compartment of a mobile phone. Here’s a little trick: follow the cooling holes and you’ll most likely be able to touch a metal box with heat sinks. The advertising screen we installed in an international shopping mall also had reflective markings on the power supply area to facilitate nighttime maintenance.

​​2. The "Invisible Man" in the seams"​​
When encountering an ultra-thin screen or a transparent screen, the power supply may transform into a "Transformer" - scattered in the splicing gaps. This distributed power supply solution can reduce the thickness of the screen by 40% [user information], but during maintenance, the modules need to be disassembled like Lego.

​​3. "Voldemort under the ground""​​
For special products such as floor tile screens, the power supply is often hidden under the pedals. The recently popular dance floor tile screens are even more exaggerated - each pedal has its own micro power supply, and even if one is stepped on, it will not affect the overall operation [user information].

2. Three major soul tortures in power supply installation

​​Q1: The more power supplies, the better? ​ ​
Don't believe it! A bar owner installed double the power supply, but his electricity bill skyrocketed and he was complained about light pollution. Remember this formula:
​​Number of power supplies = Screen area (m²) × Power density (W/m²) ÷ Single power supply power​​

​​Q2: How to choose the waterproof level? ​ ​
Teach you three tricks:

1. IP20 is enough for indoor screens (anti-finger touch)
2. For outdoor use, choose IP65 [user information] (anti-heavy rain washout)
3. The seaside scene requires IP67 (anti-salt spray corrosion)

​​Q3: Will wiring cause electric shock? ​ ​
Pay attention to these three "life-saving rules":

• Wait 5 minutes after the power is turned off before operating (remaining electricity in the capacitor will bite)
• Use a test pen to confirm the zero live wire (reverse connection will burn the control card)
• The ground wire is 3cm longer than the phase wire (the power will eventually be cut off when accidentally falling off)

3. I have stepped through these pitfalls for you.

​​1. Cooling ≠ blowing fan​​
In a gymnasium project, the power supply was installed at the air outlet of the air conditioner. As a result, the temperature difference caused condensation and caused a short circuit. The correct approach is:

• Keep more than 10cm of space for heat dissipation
• Clean dust regularly with a brush
• Install heat dissipation aluminum plates in high temperature environments

​​2. Save power ≠ turn off the power​​
Frequently switching the power supply on and off will shorten its life by 30% [User Information]. suggestion:

• Does not shut down when used for more than 8 hours a day
• Set up an intelligent dimming system (automatically matches ambient brightness)
• Enable standby mode (power consumption reduced to 5%)

​​3. Repair≠removing screws​​
Nowadays, high-end screens adopt quick-release design:

• Sliding buckle (3 seconds to remove)
• Colored wiring identification (to prevent wrong insertion)
• Modular replacement (replace whatever is broken)

personal opinion time

After working in display engineering for more than ten years, I found that the power supply is like the human heart - no matter how good the screen is, it is useless without a stable power supply. Those manufacturers who only pile up parameters will sooner or later be educated by the market. Just like the fence screen we made for a stadium in Tokyo, the power supply was specially installed under the referee's seat to facilitate maintenance and protect it from the sun and rain [user information].

The future trend is definitely intelligent power management, such as automatically adjusting brightness according to the flow of people, or remotely monitoring power consumption through APP. Remember, a good power supply must not only be hidden smartly, but also last a long time - after all, no one wants to be called up by a customer to repair the screen in the middle of the night, right?

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