汕头超时代光源有限公司

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Exhibition

Shantec will carefully organize and participate in the Brazilian International Lighting Exhibition, welcoming new and old customers to come and guide their work at the booth.

15

2023

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04

Several Key Points for UL Certification of LED Filament Lamps

Several Key Points for UL Certification of LED Filament Lamps

For a long time, LED filament lamps have faced two main problems in obtaining UL certification in the United States: firstly, the lamps must go out after being broken; The second is that the glass shell cannot be broken into pieces, but can only be broken into powder to avoid harm to the human body.

15

2021

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12

The working principle of LEDs, etc

The working principle of LEDs, etc

Light emitting diodes, like ordinary diodes, are composed of a PN junction and also have single conductivity. When a forward voltage is applied to the light-emitting diode, the holes injected from the P region into the N region and the electrons injected from the N region into the P region recombine with the electrons in the N region and the holes in the P region within a few micrometers near the PN junction, respectively, producing spontaneous emission fluorescence. The energy states of electrons and holes in different semiconductor materials are different. When electrons and holes recombine, the amount of energy released varies. The more energy released, the shorter the wavelength of the light emitted. Commonly used are diodes that emit red, green, or yellow light. The reverse breakdown voltage of the light-emitting diode is greater than 5 volts. Its forward volt ampere characteristic curve is very steep, and when used, a current limiting resistor must be connected in series to control the current passing through the diode.

15

2021

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12

Introduction to LED lights

Introduction to LED lights

Light emitting diode, abbreviated as LED, is a commonly used light emitting device that releases energy through the recombination of electrons and holes, and is widely used in the field of lighting.

15

2021

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12

LED light characteristics

LED light characteristics

LED lights are light emitting diodes, which use solid semiconductor chips as luminescent materials. Compared with traditional lighting fixtures, LED lights are energy-saving, environmentally friendly, have good color rendering and response speed.

15

2021

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12

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Add:No.2, Wanji North Street, Wanji Industrial Area,Longhu District, Shantou, Guangdong, China

Tel:86-754-88733278

Tel:86-754-88832883

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