Common minor faults of led lamps can be repaired and eliminated by themselves. If there is obvious water ingress or short-circuit burnt, you can replace it with accessories by yourself. In this case, one shell is valuable. If the shell is expensive or the whole set is ugly, such as floodlights and street lights, then you have to change the light source and driver, and get some sealant to replace it yourself. The suggestion is to find the manufacturer that does this to buy a matching package, measure the size and take photos, and don't put the light source in it, especially don't buy it separately, don't make it cheap!
If it suddenly turns off or goes dark, but other circuits are intact, that is, other electrical appliances are fine. This situation is usually caused by the light’s own nerves, which means it’s broken. This situation is more common. Let’s remove the light slowly. analysis!
Take a simple LED bulb as an example. First open the cover, take the blade and pick it along the edge of the gap. After opening it, see what driver the lamp uses, whether a board is connected to the lamp panel or the components are soldered to the lamp panel. That is, independent IC and DOB solutions, independent IC is a little troublesome.
The first point of troubleshooting: first check whether the lamp beads are in good condition. The black spots appearing in the middle of the lamp beads are basically broken. If there are only one or two broken ones, you can fix it by yourself. Poke and solder a wire or anything. If it's too bad, just change it!
Lamp bead burnt out
Troubleshoot two points: Whether the light wire connector of the led street light falls off, especially the wire on the lamp cap, where the line is easy to fall, gently pull it with your hand to try whether the contact is bad, the maintenance is also simple, the nail on the lamp cap can be tilted with a blade Drop.
The third point of troubleshooting: If it is a DOB solution, that is, the type where the components are all on the panel, check whether there is a gap in the welding of the components, you can turn on the power, and use an insulated screwdriver to click one by one to try to eliminate the fault. . If it is an independent IC drive, it is more common that the connecting wires on both sides are broken or the contact is poor, and the copper sheet is warped. These can be soldered and used by themselves.
If there are no apparent problems above, you can only buy another DOB. For IC, you can try to change the driver to determine whether it is a driver problem or a light source problem. There is no driver? Take down another lamp and change it! The cheapest hand is cheap to the end! Changing the driver is not bright is the problem of the light source, changing the driver is bright is the driving problem!
Simple maintenance of LED light source
It is easier to measure with a multimeter. Without a multimeter, you can install the lamp on the lamp holder first, turn on the switch, and use tweezers to connect the two ends of the burnt out lamp bead. (The voltage of the lamp bead here is only 2- 3 volts is not dangerous) If the lamp can turn on after connection, then poke it out and solder a similar lamp bead by yourself or solder it directly with tin wire. If it does not light up after connection, then the problem does not stop here, first replace the faulty lamp bead with the lamp bead. If there is no lamp bead, first use tin wire to solder, and then continue to try other lamp beads. You can cross multiple lamp beads. Test in sections to find out the range of the faulty lamp beads until all the bad lamp beads are found out and replaced.
Simple maintenance of LED driver
When it comes to the damage of electronic components, it cannot be repaired. Here we can only find some places where the solder has fallen off for simple repairs. Be careful not to use drivers of the same specification and model from the same manufacturer, and electronic components cannot be used. General purpose, but it's broken anyway, it may be better if you have the conditions to solder one where you can understand it.