1, led lights how to distinguish between good and bad can first be observed by the naked eye; Pay attention to the color of each led lamp bead, if there are small black dots on the lamp bead, it is burned. Secondly, it can also be measured with a multimeter.
2, first: look at the bracket, in general, the bracket is silver-plated red copper bracket, the advantage of the silver-plated red copper bracket is that the heat dissipation is fast, and the heat dissipation resistance of the lamp bead can be better. Some businesses on the market will use ceramic brackets to replace silver-plated red copper brackets, ceramic brackets have excellent thermal conductivity.
3, how to distinguish led lamp beads? Look at the brightness: brightness LED brightness is not the same, the price is not the same. The LED used for the instrument shall conform to the laser grade Class I specification. Measurement of antistatic ability: LED with antistatic ability and strong antistatic ability has a long life, so the price is high. Usually, the anti-static LED is greater than 700VED lamp bead which is better '>SMD patch LED and LED lamp bead which is better In general, the patch is good, after all, in addition to good heat dissipation and large luminous Angle, reasonable design will make your bulb no dark area, in contrast, the lamp beads have no advantage. Editor's summary: The above is the introduction of led lamp patch or lamp bead, I hope to help you.
Patch lamp bead price is cheap, can be mass produced; High power lamp bead brightness, long life, convenient DIY. SMD LED is the meaning of surface mount LED, SMD patch helps to produceIncreased productivity and different facility applications. It is a solid-state semiconductor device that can convert electricity directly into light.
Although the Angle of the patch LED is generally 120 degrees, its uniform light emission and automated welding process make it more advantageous in some specific scenarios. So, which is better, LED beads or patches? The answer is not absolute, the key is to choose the most suitable application. If you need a small Angle, concentrating effect, in-line LED beads may be the first choice.
Compared with conventional components, patch components are smaller and lighter, do not need holes, and the circuit board is thinner.Longer service life and correspondingly higher flexibility.
led lamp patch is good or good lamp bead inside the core body is the same, the Angle of the lamp bead can be very small, (the light is more concentrated, the shoot is far, but the irradiation range is limited,) the general Angle of the patch is relatively large. Add: The lamp bead power is large, the patch power is small.
each has its advantages, the difference is that the power of the led lamp bead is larger, and the power of the LED patch is smaller. And the solder joint of the ordinary led lamp bead is larger than the patch.
1, then, LED lamp beads and patch which is better? The answer is not absolute, the key is to choose the most suitable application. If you need a small Angle, concentrating effect, in-line LED beads may be the first choice.
2, each has its own advantages, the difference is that the power of the led lamp bead is larger, and the power of the LED patch is smaller. And the solder joint of the ordinary led lamp bead is larger than the patch.
3, seismicProperties: The shock resistance of LED lamp beads is not as good as the shock resistance of LED patches. Light color: LED lamp beads can emit red, orange, yellow, green and a variety of colors of light, and LED patches do not have this ability.
4, in general, the patch is good, after all, in addition to good heat dissipation and large luminous Angle, reasonable design will make your ball bubble no dark area, in contrast, the lamp beads have no advantages. Editor's summary: The above is the introduction of led lamp patch or lamp bead, I hope to help you.
5, the lamp beads have different powers, the patch also has different powers, and the power is largeMust be brighter than the one with less power.