Category: LED Knowledge

4. Selection of Substrate Material

At present, the semiconductor material used in LEDs is mainly GaN. With the maturity of GaN epitaxial growth process and device manufacturing technology, solid-state light sources from infrared, visible, white light and a few ultraviolet bands have been formed; while GaN thin film materials have not yet been single crystal GaN is homoepitaxially grown on a related special-shaped support substrate by relying on metal organic vapor deposition (MOCVD).… Read More

After semiconductor technology has triggered the microelectronics revolution, it is gestating a new industrial revolution-the lighting revolution, the symbol of which is to gradually replace incandescent and fluorescent lamps with semiconductor light sources. This article introduces the application, technology and industry status of semiconductor light-emitting materials for LEDs, compares the development of several main electrical/optical conversion materials and supporting substrate materials, and expounds the development trend of the semiconductor light-emitting materials industry for LEDs.… Read More

The Effect of Temperature on Phosphor

With the continuous development of LED technology, it is possible to use LED as a lighting source. As the light source has strict requirements on the color rendering index CRI in lighting fixtures, the current white LED technology is not mature in terms of color rendering, making it a The main obstacle restricting LED as a lighting source.… Read More

LED Lighting Parameter Standard

The parameter standards of LED lighting fixtures should mainly refer to the road lighting, indoor lighting, semiconductor lighting and other standards or technical specifications promulgated by the International Electrical Association, the International Semiconductor Lighting Research and Development and Industry Federation. They mainly include: the parameters of the LED lighting lamps involved in the above-mentioned international standards or technical specifications mainly include optical parameters and electrical parameters.… Read More

LED drive power is a power converter that converts the power supply into a specific voltage and current to drive LED light. Generally, the input of LED drive power includes high-voltage power frequency AC (that is, mains), low-voltage DC, high-voltage DC, low-voltage Frequency AC (such as the output of an electronic transformer). The output of LED driving power is mostly a constant current source that can change the voltage with the change of the LED forward voltage drop.… Read More

A brief analysis of the current status of household energy consumption

Direct household energy consumption and carbon emissions are mainly caused by household activities such as cooking, lighting, heating, bathing, entertainment, and private transportation. Since 1986, the world’s urbanization has entered a mid-term stage of rapid development. With the development of urbanization, the living standards of residents have gradually improved. While incomes have increased, people’s consumption of energy products has also increased, and household direct carbon emissions have also followed.… Read More

LED lighting is a newly developed industry in recent years, and it is important for the design of lighting terminal products. It is necessary to master the knowledge of the traditional lighting industry, domestic and international standards, and the knowledge of LED devices. In particular, it is necessary to accurately grasp the definition of LED lights,lights, and the differences from traditional lighting lights.… Read More

Definition of explosion-proof lights

refers to lights used in dangerous places where flammable gases and dust exist, which can prevent arcs, sparks and high temperatures inside the lamp from igniting flammable gases and dust in the surrounding environment, thereby meeting the explosion-proof requirements. There are mainly explosion-proof explosion-proof lights, safety explosion-proof lights, and mobile explosion-proof lights. Explosion-proof platform lights are suitable for lighting in flammable and explosive places such as petrochemical installations, petroleum platforms, gas stations, oil pump rooms, and transfer stations, explosive atmosphere, flammable dust environment.… Read More