19.9 yuan millet with LED lights dismantling the whole process exposure

Viewing the structure of the LED light from the outside is not complicated, so the tool is relatively simple. The LED lamp is unrecoverable after being removed from the overall design, so it is not recommended to disassemble it.

The portable LED lamp is a cast-integrated product that cannot be recovered after being disassembled. Such a unitary 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 frosted mask to see the internal LED lights and some electronic components. The advantage of using a frosted mask is to avoid direct light. The light from the adjacent two lamps will refract the light of the entire LED body. Integration, there will be no black shadow between each lamp. After refracting, the light that enters the eye will be softer and less dazzling.

After the LED lamp's clothes are smashed, the bent part is 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 3 A, so it is completely sufficient to make a 1.2 W LED lamp power cord. Everyone can use it with confidence. After opening, it is found that the millet LED lamp is not a universal bending because it takes into consideration the mechanical structure and mechanical strength.

The design of the circuit board is very simple, the wiring is orderly and the workmanship is exquisite. Each LED lamp bead is very large, so that it has a higher lumen.

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

In order to consider the lower thermal conductivity of the plastic, a metal middle frame is added before the plastic casting to allow the 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 material of the LED light supply wire is also very particular. Although the color of the wire seen is white, the white wire will first think of aluminum wire and wire. Such a white wire is tin-plated with copper to protect 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.

After measurement, leave a LED lamp bead connected in series. The voltage also rose from 5V to 18V. The careful friend found that the placement of the small-coded test pen was not a normal tandem position, but it was true that Xiao Bian began to wonder. After the actual measurement, the light at the bottom and the other five light beads were placed in reverse.