How to Distinguish the Positive and Negative Pole of the Light -emitting Diodes

There are generally two types of light -emitting diode: direct plug -in LED light -emitting diode, patch LED light emitting diode. The following editors explain the positive and negative poles of the direct -plug LED light -emitting diode: direct insertion light -emitting diode, patch light -emitting diode, high -power light emitting diode, COB light -emitting diode, light emitting diodes have so many categories so many categories. How to quickly judge the positive and negative electrode of the light emitting diode, including: direct and light -emitting diode positive and negative poles, the positive and negative pole judgment of the glowing diodes, the positive and negative pole judgment of the high -power light -emitting diode,. It is equivalent to LED light -emitting diode positive and negative poles, direct insertion, patch, high power, COB packaging, one by one reference. However, this "reference" is not as obvious as the traffic light at the intersection. Because it is a product of the LED electronic industry, the professional requirements are very standardized. If you just understand it, it is easy to feel that it is not easy to determine the specific packaging type, or there is no intuitive graphic explanation. First look at the direct -plug light emitting diode. Round head glow diodes: 3mm light -emitting diode, 5mm light emitting diode, 8mm emitting diode, 10mm emitting diodes ellipsed diode: F3 light emitting diode, F5 light emitting diode, F8 light emitting diode, F10 light -emitting diode; straw hat light diode: 5mm straw hat light -emitting diode, 8mm 8mm Straw hat -shaped light diode, 10mm straw hat light -emitting diode square -shaped diode: 234 light emitting diode, 257 light emitting diode, 557 light emitting diodes flat head plug -in diode: white light flat head plug -in diode, color light flat head plug -in diode diode diode tube……Customized plug -in diode can meet the needs of direct inserting LED applications. There are two views of direct -inserting light -emitting diodes: 1. Look at the appearance. Round, ellipse, straw hat, square, flat -headed 2. Look at the size. 3mm, 5mm, 8mm, 10mm, etc. 3. If you don't pay attention, you will feel that the appearance and size are not related. Anyway, it is "plug -in" or "direct insertion". s difference. For example, straw hat -shaped glowing diodes can only be made 5mm, 8mm, 10mm, 3mm straw hat type. In the present, energy -saving and environmentally friendly products have long been common. LED lights are a kind of light and efficient, more power -saving and long -lived lamps. LED light applications are becoming wider and wider. LED lights can be seen everywhere in indoor home furnishings and urban lighting. The light source of the LED light is composed of luminous diode. We must identify the positive and negative electrode of the light -emitting diode. Only the correct polarity can let the LED light shine normally. Lay the foundation for the design and application of LED light products.