Pliers blades rushed to violent dismantling millet LED portable lights

This year, the eleventh millet released a 16000mAh mobile power supply, but also brought a new thing: LED portable lights. When I saw the small lamp, I couldn’t help but recall the fact that I was hiding in the bed when I was at school. Although the electric lights have now entered thousands of households, there are occasions when there is a trip and power outage; when winter comes, lying on the bed and thinking about reading, the small lights will become important.

Recently, a player from the Xiaomi Forum will soon be able to use the pliers and the blade to violently disassemble the LED portable light, and show the internal structure and workmanship of the LED portable light without any reservation. Looking at the LED portable light structure from the outside is not complicated, so the tool is relatively simple. The LED portable light adopts the integrated injection molding design, which cannot be restored after the removal, so it is not recommended to open it. Thanks for the author's sharing, after reading this post you saved 19.9 yuan, is not very cost-effective. Disassemble is risky and should not be easily imitated.

Such an integrally formed structure is advantageous for aesthetics, but is not conducive to maintenance. It also has good water resistance, but it is difficult to flow out when the water actually enters the inside of the lamp body, which has a great influence on the service life of the internal electronic components. So don't let the water vapor in the lamp. If you accidentally sprinkle the water during use, remove it in time and wipe it with a paper towel to avoid liquid immersion.

Remove the front matte mask to see the internal LED lights and some electronic components. The advantage of using a matte mask is "soft light" to avoid direct light. The refracting of the light from the two adjacent lamps will make the light of the entire LED body more integrated, without the black shadow between each lamp. After refracting, the light that enters the eye will be softer and less glaring.

At first, the author thought that the millet LED portable light adopts the universally bent design. Now solve the mystery that can't be bent universally. Be careful not to draw it here. This knife goes down and means that it can never be restored, so curiosity comes at a price.

The part of the LED portable lamp was knocked off and the bent part was a 14# high-toughness wire. This wire is very soft and easy to shape and does not rebound. Two good quality 0.5 square millimeter tinned copper wires. Such a wire can withstand a current of 3A, so the power cord for a 1.2W LED lamp is completely sufficient, so you can use it with confidence. After opening, it is found that the millet LED lamp is not a universal bend considering the need for mechanical structure and strength.

The inside of the millet LED portable light is a white PCB, which can be used for reflective; built-in 6 0.2W high-brightness LEDs, totaling 1.2W; the design of the circuit board is very simple, the layout is orderly, and the workmanship is exquisite. Each LED lamp bead is very large and can bring higher lumens.

Seeing that the author is scared of urine, the circuit board and the heat-conducting plate are not transmitted by thermal grease, but are printed directly after the metal plate is coated with an insulating layer. This heat transfer efficiency is greatly improved.

Pliers blades violently disassemble millet LED portable lights Consider plastic low thermal conductivity, plastic injection before adding a metal frame to allow heat to be led to the rear heat sink faster. Accelerate the internal and external heat exchange, extending the service life of LED lights and other electronic components.

The power supply wire of the LED portable light is also very particular. Although the color of the wire seen is white, the white wire will first think of aluminum wire and iron wire. The white wire is tinned copper, which protects the copper wire from oxidation. Such thick and high-quality copper wire is to reduce the resistance and reduce the electrical loss, so that more electricity becomes light instead of turning it into heat.

The rated voltage of the Xiaomi LED portable light is 5V, and the rated power of the light source is 1.2W. Through the "white tail" test, the output voltage and current of the Xiaomi LED portable lamp are 5.06V, 0.26A, and the power is 1.3156W, which is about 0.1W from the nominal power. This small lamp can be used for 45 hours if it is used on the millet 16000mAh (60Wh) mobile power supply; it can be used for 28 hours when using the millet 10400mAh (37.44Wh) mobile power supply; it can be used with the millet 5000mAh (18.5Wh) mobile power supply. Lighting for 14 hours. The convenience of this small lamp is that after the combination with the mobile power supply, with the gravity support of the power supply, when the small light is erected, the second becomes the desk lamp, which is convenient to insert and shine.

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