युनानेंगाजी LED lamp beads require DC low voltage to work, 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, the lower the working temperature, the smaller the light decay, and the longer the life of the LED lamp.
7: The probability of fluorescent lamps dimming is much greater than that of LED lamps, because fluorescent lamps are heated by the gas in the lamp tube to emit light. When the heat light tube is aged or damaged, the brightness of the fluorescent lamp will be insufficient due to the reduction of internal gas or poor sealing. Generally speaking, this problem is mostly caused by damage to the lamp beads. You can remove the lamp board to see if there are black spots on the lamp beads. If there are, the lamp beads are broken. If the driver is broken, the driver board needs to be repaired.