Important parameters and purchasing skills of 5050 SMD LED lamp beads
1. Color rendering index The size of the color rendering index directly determines the gorgeousness of the color of the lamp beads. The higher the color rendering index, the better the color rendering LED light strip. 2. Pay attention to the soldering temperature Pay attention to the welding temperature and welding frequency
What are the effects of LED lamp bead packaging process on lamp beads
1. Lamp-LED (in-line) In-line (round head or straw hat) LED lamp beads are sealed by Lamp-LED potting process. The mold cavity is filled with resin, and then the LED bracket is pressure-welded and finally sealed and molded SMD LED lamp beads. This way, it is integrally formed. The process is simple, and the cost is low in control, so it can be mass-produced, even though there are still a large number of direct-plug LED lamp beads on the market.
The selection principle of led lamp beads
The selection principle of led lamp beads is nothing more than to look at its luminous intensity (brightness), luminous angle, size, performance characteristics (such as two-color, three-color, fast flash, slow flash, high brightness, general brightness, super brightness), etc. , The final main body is to buy a LED lamp bead with good brightness, low energy consumption, cheap price and long service life In line LED. 1. Good antistatic ability
Advantages of in-line LED lamp beads
Advantages of in-line LED lamp beads 1. The price is cheap and affordable, with many uses and a large market. 2. Low power and energy saving. 3. Long service life and good luminescence. 4. The product is of good quality, durable and not easy to break.
What is the cause of the leakage of LED lamp beads
1. It is normal for the encapsulation gel to age, and the leakage phenomenon caused by the aging of the package gel due to overheating for a long time is normal, but the probability of this situation is very small, because the current LED lamp bead packaging process is relatively mature and dedicated The resin rubber also has good protective properties SMD LED lights. 2. Static electricity damage. Many manufacturers have always emphasized anti-static protection. The main purpos
The harm of static electricity to LED_Measures to eliminate static electricity of LED lamp beads
LED light-emitting chips are semiconductor devices that are sensitive to static electricity Patch Light Emitting Diode. If static electricity is generated during use, packaging and storage, it will easily damage the light-emitting chips of the lamp beads and cause the lamp beads to not light up. Therefore, the produced LED lamp beads are packaged in aluminum foil bags, so that they can be stored for a long time and completely eliminate the harm of static electricity SMD LED lamp beads.
LED lamp bead packaging process
LED lamp bead packaging process 1. The task of LED packaging It connects the outer lead to the electrode of the LED chip, protects the LED chip, and improves the efficiency of light extraction LED light board patch. The key processes are rack mounting, pressure welding, and packaging. 2. LED package form
LED lamp beads production process
LED lamp beads production process 1. Production: a) Cleaning: Use ultrasonic to clean the PCB or LED bracket and dry it. b) Mounting: After preparing the electrode at the bottom of the led tube core (large wafer) with silver glue, expand it, and place the expanded tube core (large wafer) on the crystal piercing table, and use a crysta
What are the effects of damp on led lamp beads
First of all, it is undeniable that if the LED lamp bead is placed in a dark and humid place for a long time, it may be damp. Although the surface of the led lamp bead is packed in an anti-static bag or aluminum foil bag, it may still be damp. Because these packaging bags can not completely resist moisture, and also need to place a desiccant. The main effect of LED lamp beads after being damp is that the lamp beads are not bright, or the lamp beads are dim and low in brightness. This is a common storage problem of led lamp beads. Manufacturers ca
One article knows the difference between white hair green and green hair green LED lamp bead model
The main difference between white hair green and green hair green LED lamp beads is that the colloids are different, and the luminous effect brought by the different colloids is one spotlight and one astigmatism. It is precisely for this reason why manufacturers produce two different-color colloidal lamp beads. The most common white hair and green on the market are straw hat-shaped plug-in lamp beads, which are widely used in traffic lights, street signs, etc. Green hair and green are mostly used for switch indicators, keyboard indicators, mechan
The difference between 2835 lamp beads and 5730 lamp beads 5050 lamp beads
Overview 2835 lamp beads, 5050 lamp beads, 5730 lamp beads are a kind of packaging form of light-emitting diodes, SMD packaging structure, good heat dissipation performance, high light output efficiency of the lamp beads, high temperature resistant PPA and PCT bracket structure manufacturing, production is fully automated The solid crystal bonding wire dispensing process, high productivity, and high cost performance are the main lamp bead types used in LED finished lamps, which
How to prevent moisture from LED lamp beads
As the humidity in the air increases with the seasonal changes, how should LED lamp bead products be properly damp-proof and prevent the product quality from being affected by humid environmental factors? To this end, Fujian Tiandian Optoelectronics gives the following suggestions for moisture protection to reduce product wear and tear and potential quality hazards. 1. The LED lamp bead products are packaged in a moisture-proof and anti-static aluminum foil bag. During the hand
What is the LED bracket used for Craft Stamping-electroplating-injection molding-cutting-packaging Lamp brackets are generally copper plated with silver, top and side. High-power brackets are generally made of copper with a silver structure and a plastic reflector. Copper is used for circuit connection, reflection, welding, etc., and plasti
The LED bracket is the bottom base of the LED lamp beads before packaging. On the basis of the LED bracket, the chip is fixed in, the positive and negative electrodes are welded, and the packaging glue is used to encapsulate it once High-power LED. The led bracket is generally made of copper (also iron, aluminum, ceramics, etc.). Because copper has good conductivity, there will be leads inside it to connect the electrodes inside the LED lamp bead. After the LED lamp bead is pac
As the most expensive and most used component of LED display, LED lamp beads play a leading role in the quality of LED display SMD lights with LED. Today we will introduce to you why LED lamp beads are the most critical component of LED display screens, and how to distinguish the advantages and disadvantages of LED lamp beads? The most critical component of a full-color LED display is LED lamp beads. There are three reasons:
What are the reasons for the damage of LED lamp beads
White LED lamp beads are voltage-sensitive devices. In actual work, the current is 20mA as the upper limit, but the current will often increase due to various reasons in use Lamp bead patch. If no protective measures are taken, this increase The LED lamp beads will be damaged after the current exceeds a certain time and amplitude In-line LED lantern. The main reasons for the damage of the LED lamp beads are:
18650 battery to light up 20 led lamp beads solution sharing
For 20 led lamp beads, it is necessary to indicate whether the lamp beads are used in series or in parallel, and the power of the lamp beads should be indicated! Well, let's talk about the 18650 battery first In line LED. The 18650 battery is a commonly used lithium battery in electronic products, and is often used as an electric core in the battery of a notebook computer. The definition of the model is: 18650 type, that is, the diameter of the battery is 18mm and the length is
Can LED lamp beads be lit with a transformer?
LEDs are divided into finished lamps and LED lamp beads. For finished lamps, they can be lit as long as they are connected to the power supply that meets the rated voltage and current properties of the lamp (such as 12v DC, 220v AC), and each lamp is allowed to have a certain voltage fluctuation range, and it does not exceed it. Nothing through the transformer. If it is an LED lamp bead, it can be directly lit with a transformer, but this is not recommended.
Why is LED lamp bead so critical?
As the most expensive and most used component of LED display, LED lamp beads play a leading role in the quality of LED display LED strip patch. Today we will introduce to readers why LED lamp beads are the most critical component of LED display screens, and how to distinguish the advantages and disadvantages of LED lamp beads? The most critical component of a full-color LED display is LED lamp beads. There are three reasons:
How does ultraviolet light produce ozone?
Theoretically, the photon energy is higher than the bond energy to break the chemical bond. Therefore, ultraviolet rays with a wavelength shorter than 243 nm can excite oxygen in the air or water to produce ozone. UVC-LEDs with wavelengths higher than 243 nm do not produce ozone LED lamp beads. Low-pressure mercury lamps produce ozone, because the vapor pressure of 1.3~13P low-pressure mercury lamps naturally has 185nm vacuum ultraviolet rays in the light emission spectrum. Thi
Analysis of the causes of dead lights in the process of LED lamp bead welding
1. Common soldering methods can be divided into electric soldering iron soldering, heating platform soldering and reflow soldering soldering, etc.: A. Soldering with electric soldering irons is the most common, such as making samples and repairs. In order to save costs, most of the existing manufacturers buy electric soldering irons that are unqualified and slightly quality products, most of which are poorly grounded, leaking, and soldering. This is equivalent to forming a loop
Dongguan XINYUDA Technology Co., Ltd. was established in Hong Kong by Hong Kong Konlida International Group Co., Ltd. in the 1990s, focusing on LED R&D and investment. After more than ten years... NewsLetter
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