Smd1921, 2525, 2727, and 3535 are commonly used in outdoor LED SMD Screen displays. Commonly used indoors are smd2121, 1515, 1010, and 2020.
There are some slightly more popular ones such as smd1919, 1820, etc.
LED SMD Screen light specifications
- According to the lamp head: e27e14b22
- According to power: 2W3W5W7W9W11W
- According to light color: white light, warm white
- The shell material includes aluminum alloy, plastic, and ceramic
1. Color temperature:
Conventional color temperature: warm white light (WW) 2700-3200k, natural light (NW) 4000-4500K, positive white light (PW) 6000-6500K, cold white light (CW) 7000-7500k.
In addition, red, green, blue, and other single-color lamp beads can also be made.
2. Power:
The power of LED bulbs is generally below 12W. Common LED bulb powers are divided into 3w, 4w, 5w, 6w, 7w, 8w, 9w, 10w.
3. Voltage and current:
Voltage and current are also very important basic parameters of LED bulbs.
The power grid voltages and voltages used in certain situations are different in different countries around the world. Commonly used voltages are 12v, 110v, 220v, and 85v-265v.
4. Light efficiency:
Light efficiency is also a very important factor in LED bulbs.
5. Luminous flux:
Luminous flux is mainly determined by the luminous efficiency and power of the LED bulb. Generally, an integrating sphere is used for measurement.
6. Illumination:
The unit of illumination is Lux, which is called Lux in English. It can also be abbreviated as Lx.
The illumination produced by a luminous flux of 1 Lm is evenly distributed on a surface of 1 square meter. Illuminance is usually measured with an illuminance meter. The illuminance meter is simple to use and cheap to purchase. When there is no integrating sphere system, the illuminance meter can be used to measure as some reference.
7. Light decay:
In layman’s terms, light decay refers to how much the brightness of a bulb decreases after being used for a certain period of time. The most important factors affecting LED Outdoor SMD Screen light decay are heat dissipation and current. If the current is unstable and the heat dissipation effect is poor, the light attenuation will be serious.
8. Chromatic aberration:
Chromatic aberration is the inconsistency of color temperature. Generally, warm white light (2700-3200k) will take chromatic aberration into consideration.
9. Color rendering:
The degree to which the light source presents the color of the object itself is called color rendering, which is the degree to which the color is realistic.
10. Glare:
If there are extremely bright objects or strong brightness contrast in the field of view, it can cause visual discomfort called glare. Glare is an important factor affecting lighting quality.
11. Lifespan:
In general instructions, LEDs can be used for more than 50,000 hours. And some manufacturers claim that their LEDs can operate for about 100,000 hours.
Extended information
Advantages of LED energy-saving lamps compared to traditional lighting equipment:
1. LED SMD Screen energy-saving lamps are efficient and energy-saving
Lighting in modern society is an indispensable tool in people’s lives, so energy consumption is also very large. Extensive use of LED lamps will save a lot of energy. When emitting the same brightness, compare several lamps that also consume 1-kilowatt hour of electricity.
(1) LED lights only require 3W and can be used for 333 hours.
(2) Ordinary incandescent lamps require 60W, but they can only be used for 17 hours.
(3) Ordinary energy-saving lamps require 10W to achieve the same brightness, and 1 kilowatt hour of electricity can be used for 100 hours.
It can be seen from here that LED lights save at least 3 times more energy than ordinary energy-saving lamps.
2. LED SMD Screen energy-saving lamps have a long service life:
LED lamps emit light through semiconductor chips, have no glass bubbles, are not afraid of vibration, are not easily broken, and have Up to 50,000 hours is the service life of the product.
Compared with ordinary light bulbs (used for 1,000 hours), it is 50 times longer; compared with ordinary energy-saving lamps (used for 8,000 hours), it is more than 6 times longer. He is the obvious super boss.
3. LED SMD Screen energy-saving lamps are green
Environmentally friendly and healthy to use: LED lamps themselves do not contain harmful substances such as mercury and xenon. Element, will not produce electromagnetic radiation and harmful rays.
(1) Ordinary lamp unit contains elements such as mercury and lead, and produces harmful radiation such as external rays and infrared rays when the power supply passes;
(2) The electronic ballast in energy-saving lamps will produce electromagnetic interference, which is not good for health.
4. High light conversion rate
90% of the electrical energy of LED lights is converted into light energy, while only 20% of ordinary light bulbs are converted into light energy.
5. LED energy-saving lamps are safe and have wider uses
LED lights require small voltage, and small current, and generate less heat, so they can be directly used in solar Sunlight Power supply, outdoor lighting, and other remote places without geographical restrictions.
6. Protect eyesight, and the light source has no jitter
The working principle of LED energy-saving lamps is to use high-brightness white light-emitting diodes as the light source. The cold light source used does not generate heat and saves electricity. The light source uses a microcomputer built-in controller to realize seven LED color changes, making the light color soft, gorgeous and colorful.
The detailed parameters of high-power LEDs are generally handed in the manufacturer’s specifications. In addition, you can also enter high-power LED through Mustang LED Trade Network or Global Sources Appearance Website, and you can see some affiliated crucial parameters. Since LEDs are generally have constant current bias, the current is generally fixed. 1W is generally 350MA, 3W is generally 700 to 750MA, and 2W is fairly small. But the voltage isn’t inescapably the same. There are generally differences between red light, green light, and white light. However, you can visit the reference accoutrements that I hope can help you, if you need to know further about LED.
What are the specifications and models of auto LED lamp beads?
1. There are three types of LED lamp beads
1. Direct- draw low- power specifications include straw chapeau/ sword helmet, round head, concave, round, square( 2 * 3 * 4) pellet head, flat head,( 3/ 5/ flat head/ chuck type) piranha, etc.
2. SMD Screen patches are generally divided into (3020/3528/5050, these are frontal-emitting) 1016/1024, etc. These are side- emitting light sources.
2. High- power LEDs cannot be classified into SMD Screen series
Their power and current operation differ, and the photoelectric parameters vary significantly. However, its appearance isn’t much different from that of an ordinary patch, if a single high- power LED SMD Screen light source doesn’t have a heat dispersion base (generally a hexagonal aluminum base). The high- power LED light source is round and the packaging system is principally the same as an SMD patch. Still, it’s unnaturally different from SMD patches in operation conditions terrain/ goods, etc.
3. The luminous principle of LED lamp beads
The terminal voltage of the PN junction forms a certain implicit hedge. When a forward bias voltage is applied, the implicit hedge diminishments, and the maturity carriers in the P and N regions verbose toward each other. Since the electron mobility is much lesser than the whole mobility, a large number of electrons will diffuse to the P region, constituting the injection of nonage carriers into the P region.
These electrons recombine with holes in the valence band, and the energy attained during the recombination is released in the form of light energy. The PN junction fluorescence illustrates this principle. LEDs have numerous color temperatures. Still, the color temperature is only for white light and warm white light, and the unit is k. For illustration, 7000k is true white light, above 7000k it’s bluish, and below 7000k it’s unheroic (warm white).
LEDs of other colors don’t talk about color temperature, but wavelength or band… still, you can continue to ask Our Mustang LED mastermind, if you do not understand anything.
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