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What are the advantages and disadvantages of LED lamp beads?
Time:
2022-06-24 09:37
The most significant advantage of LED lamp beads: its greater style advantage is color variability, which can meet the diversification of different customers' requirements for the actual effect of light, can customize the light source, and the application indoor space will not be limited by specifications, further improving The designer's practical interior space for the use of light sources.
The advantages of LED lamp beads are definitely more than the disadvantages, such as: low power consumption, high brightness, bright colors, anti-vibration, long life (normal lighting 8-100,000 hours), cold light sources and other advantages, are the real "green lighting" ". I believe that the future LED lamp beads will develop better and better with the progress of the times!
The reason why the high-power LED lamp beads burn out: the upper and lower filaments are called gold wires in our industry, pure gold, for electrical conduction, two positive poles, two negative poles, really good products will have a fifth wire, welding On the Zener tube, the shortening of the protective filament will clearly tell you that your lamp has been burned by a large current, which is equivalent to an open circuit. The voltage is between 3.2-3.6V. Please pay attention when using it. Excessive current will definitely burn the lamp. Generally, the aluminum substrates of three 1W lamps are driven by about 12V. See if a constant current source is missing or a 12V drive power supply is missing?
The reason for the yellowing of the LED lamp beads: the yellowing of the LED outer sealant is mostly caused by the mismatch between the epoxy resin and the curing agent, but it cannot be ruled out that the baking time of the outer sealant is too long. How to solve it? Buying a complete set of outer sealing glue and curing agent, such as Shanghai Fine Chemical's model 800 or 2339 glue, will not have the following situation, and pay attention to production control, strictly follow the operation instructions, and avoid reasons such as excessive or insufficient baking time. It's very manageable.
The reason for the large decline of LED lamp beads: the iron bracket has poor thermal conductivity. Epoxy yellowing. The chip is not in close contact with the holder. Chip attenuation is large
The LED lamp bead should be a problem of capacitive and inductive loads: in fact, neither, the LED lamp bead is a diode, it needs a forward conduction voltage to work, generally 2-3.5V, in addition, the current The size can control the brightness of the LED lamp beads. That is to say, LED lamp beads only convert electrical energy into light energy.
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