YUANNENGJI LED-lampor kräver lågspänning DC för att fungera, but the mains electricity we usually use is AC high voltage (AC220V). To convert the mains electricity into the electrical energy required by the lamp beads, a device called “LED constant current driver power supply” is needed. As long as the parameters of the driver match the lamp bead board, it can be powered continuously and used normally. Because the LED itself is composed of lamp beads, if one or part of it is not lit, the entire lamp will inevitably dim. Lamp beads are generally connected in series and then in parallel – so if a lamp bead burns out, it may cause a batch of lamp beads to not light up.
One of the functions of the driver is to provide a constant current and a stable power supply environment for the LED lamp beads. LED is a relatively sensitive low-voltage semiconductor device. A qualified driver power supply must comprehensively consider factors such as conversion rate, constant current accuracy, service life, and electromagnetic compatibility.
1: There are obvious black spots on the surface of the burnt lamp beads. Just connect a wire to the back of it to short-circuit; or replace the new lamp beads to solve the problem.
2: LED lamp beads are an important part of LED lamps and the main body of the light. Since LED lamp beads are connected in series and then in parallel, once one of the lamp beads burns out, the entire LED lamp may not light up.
3: Light decay refers to the brightness of the light source becoming lower and lower over time, especially the incandescent lamps and energy-saving lamps we often use, which may not light up after use.
4: The light decay of the LED itself causes the brightness to dim. Light decay refers to the light source, such as various lamps and light sources, which will become lower and lower in brightness over time, especially the incandescent lamps and energy-saving lamps we often use, which may not light up after use.
5: Chip problem: When the chip is damaged, the brightness of the LED light will decrease, which is what we call dimming. In severe cases, the entire LED light will not light up. Minghong uses original imported COB high-brightness chips to reduce light decay from the root, and the light emitted is uniform and comfortable, more transparent and bright, with a long service life and a three-year warranty.
6: Problems caused by heat dissipation. If the heat dissipation effect is not good, the light source will age. The better the heat dissipation performance, desto lägre arbetstemperatur, desto mindre ljusförfall, och ju längre livslängd LED-lampan har.
7: Sannolikheten för att lysrör dimmar är mycket större än för LED-lampor, eftersom lysrör värms upp av gasen i lampröret för att avge ljus. När värmeljusröret är åldrat eller skadat, lysrörets ljusstyrka kommer att vara otillräcklig på grund av minskningen av intern gas eller dålig tätning. I stort sett, detta problem orsakas oftast av skador på lamppärlorna. Du kan ta bort lampbrädan för att se om det finns svarta fläckar på lamppärlorna. Om det finns, lamppärlorna är trasiga. Om föraren är trasig, förarkortet behöver repareras.