The classification of LED lamp beads can be divided according to different standards. The following are several common classification methods:
Classification by luminous color
LED lamp beads can be classified according to their luminous color, mainly including red, orange, green, blue light, etc. In addition, some light-emitting diodes contain two or three colors of chips to achieve a variety of color luminous effects. According to whether the light-emitting diode is doped with a scattering agent, colored or colorless, it can be further divided into four types: colored transparent, colorless transparent, colored scattering and colorless scattering.
Classification by the characteristics of the light-emitting surface of the light-emitting tube
1. Round lamp: including round lamp beads of different diameters, such as φ2mm, φ4.4mm, φ5mm, φ8mm, φ10mm and φ20mm. These lamp beads are named and classified according to their diameter.
2. Square lamp, rectangular: LED lamp beads with square or rectangular shapes have different sizes and luminous characteristics.
3. Surface light-emitting tube: LED lamp beads with a larger luminous surface are usually used in occasions that require uniform lighting.
4. Lateral tube: LED lamp beads with light emitted from the side, suitable for specific lighting and indication needs.
5. Micro tube for surface mounting: Micro LED lamp beads designed for surface mounting, widely used in electronic equipment and lighting products.
Classification by power
1. Low-power LED lamp beads: Usually the power is between 0.06W and 0.5W, suitable for indicator lights and small lighting equipment.
2. High-power LED lamp beads: The power ranges from 1W to hundreds of watts, suitable for large lighting equipment such as street lights, stage lights, etc. This type of lamp beads has high luminous flux and high efficiency, but needs to be equipped with good heat dissipation facilities.
Classification by packaging form
1. Direct plug-in LED lamp beads: Including straw hat type, round head type, etc., usually with two pins, directly inserted into the circuit board for use. This type of lamp bead is simple and easy to use, low cost, and widely used in various indicator lights and lighting equipment.
2. SMD patch LED lamp beads: such as 3528, 5050 and other models, surface mounted on the circuit board, suitable for large-scale production and integrated applications. This type of lamp bead is small in size, high in brightness, and has good heat dissipation performance. It is widely used in products such as light strips, panel lights, and ceiling lights.
3. COB LED lamp beads: Multiple LED chips are directly packaged together to form a light source. This packaging method provides better lighting effects and heat dissipation performance, and is widely used in lighting facilities such as homes, businesses, and factories.
Classification by special functions
1. Tricolor LED: By controlling the brightness of red, green, and blue, various colors can be displayed, which is widely used in display screens and color lighting.
2. Ultraviolet LED: It can emit ultraviolet rays and is usually used in sterilization, curing, and other fields.
3. Infrared LED: It can emit infrared rays and is usually used in remote controls, security, and other fields.
In summary, there are many ways to classify LED lamp beads, and it is crucial to choose the right LED lamp beads according to different application scenarios and needs.