Ouch! Recently, a friend asked me: "Brother, I want to buy a laser pen for LED screens. Where can I find it?" " To be honest, I was confused when I first heard this question - what on earth is this thing? What is the difference between it and ordinary laser pointers? Today we will break it apart, crush it and say, keep it until you finish reading Men'er Qing!

1. First understand: What is this thing used for?

​​LED screen laser pen​ ​Not the little red dot laser pointer you use for meetings! To put it bluntly, this is specially designed for big scenes such as stage performances, shopping mall advertising screens, and sports events.​ ​High power positioning tool​ ​. For example: Have you ever seen a concert? The singer waved his hand, and the LED background wall lit up with a specific pattern, which is its contribution.

2. 3 things you must know before buying

1. ​​The bigger the power, the better​​
   300mW is enough for normal environment. If it exceeds 500mW, special permission is required. Don't listen to the seller's lie that "the more powerful it is, the more professional it is", or be careful that it will be confiscated by the security guard as dangerous goods!

2. ​​Check these key parameters​​

• ​​Spot diameter​ ​ ≤2mm (accurate positioning without deviation)
• ​​Response speed​ ​ <0.1 seconds (it would be embarrassing if you can’t keep up with the rhythm)
• ​​Protection level​ ​ At least IP54 (dust and splash proof)

1. ​​Compatibility needs to be tested​​
   Different brands of LED screen receiving modules may have differences, so it is best to bring the equipment for on-site testing. Just like a mobile phone charging cable, if you look at the interface, it may not work if you plug it in!

3. Reliable purchasing channels start from the bottom

​​Online platform​ ​: Dongmao’s industrial equipment store, focus on stores with [three-year warranty]. Here’s a little tip – check the product details page to see if there is​ ​Actual operation video​ ​, 80% of those who post product pictures are second-rate dealers.

​​Professional exhibition​ ​: Like the LED Lighting Exhibition in Guangzhou and the Stage Equipment Exhibition in Shanghai, you can get started and try it out directly. Last year, I saw a sample from a Shenzhen manufacturer at an exhibition. The on-site demonstration showed accurate positioning in a heavy rain environment, awesome!

​​Factory direct purchase​ ​: It is recommended to give priority to source manufacturers in the Pearl River Delta. Let me tell you quietly, 70% of domestic LED supporting equipment comes from here, and many factories that OEM for big Japanese and Korean brands are now accepting small orders!

4. Don’t jump into pitfalls that you have personally stepped on.

Last year, I helped a friend purchase something cheap and bought an uncertified "foreign trade final order". As a result, it suddenly malfunctioned during an event in a shopping mall, and the advertising slogans on the large LED screen became garbled characters, and we almost had to pay liquidated damages! Later I changed the belt​ ​CE certification​ ​and​ ​FCC certification​ ​The equipment is reliable.

Here’s another piece of trivia:​ ​Temperature has a greater impact than imagined​ ​! There was an outdoor performance in Harbin in winter, and ordinary equipment was frozen to the point of being unresponsive. Now I choose the operating temperature range to be​ ​-20℃~60℃​​The model is a little more expensive, but it won't fall apart at critical moments.

Let me tell you, buying this kind of professional equipment is like looking for a partner.——​ ​Suitability is more important than price​ ​! Don’t just look at the price, but also look at whether there is 24-hour technical support after sales, and whether you can respond quickly to emergencies. After all, what we buy is a tool to solve a problem, not an old man to provide for it, right?

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