Abstract: This paper analyzes the characteristics and current problems of LED lamps from LED lamps, lamps and their current status as the cut-in, based on the definition of LED lamps and lamps, and has done with the performance, evaluation and design of traditional lamps. In comparison, the International Electrotechnical Commission (IEC), the US Energy Star, and the North American Lighting Society (IESNA) introduced the publication of standards related to LED lamps and the publication of national standards related to LED lamps in China.
The entry of LEDs into the field of lighting has triggered a revolution in the field of new lighting technology. Due to the different shapes, quantities, sizes of LEDs can be arranged in different ways, different LEDs can replace the LED structure in the lamp can be different, a variety of LED lighting products appear in the field of lighting (for example: LED decorative lighting, LED road lamps, LED floodlights, embedded LED lamps, LED tunnel lamps, LED desk lamps and traffic signal lamps, etc.) and traditional light source alternatives (eg LED replacement incandescent lamps, MR16, PAR lamps, straight tube fluorescent lamps) T8/T12, etc.). With the continuous improvement of LED technology and the further improvement of the pursuit of lighting sensory vision, the design and performance requirements of LED luminaires are more specific, which puts higher demands on luminaire manufacturers and lighting product designers.
Semiconductor LED solid-state lighting is a newly developed industry in recent years. For lighting terminal product designers and lighting manufacturers, it is necessary to master the knowledge of the traditional lighting industry, the standard dynamics at home and abroad, and the knowledge of LED devices. In particular, it is necessary to accurately grasp the definition of LED lights, luminaires, and differences from traditional lighting fixtures. Due to the different industries in the semiconductor industry and the lighting industry, and the lack of sufficient standard support for semiconductor LED solid-state lighting (SSL), there is a mixed phenomenon in domestic LED lighting products. Manufacturers claim that product performance often differs from actual results. Far from far, the color quality and life expectancy are extremely exaggerated, which is unfavorable for the development of China's LED lighting industry and the cultivation of consumer confidence.
This paper analyzes the characteristics and current problems of LED lamps from the definition of LED lamps and lamps based on the definition of LED lamps and lamps, and compares them with the performance, evaluation and design of traditional lamps. At the same time, it introduces the standard situation of LED lamps in China and the world, and points out that the technical elements of LED lamps should be combined to observe and track the changes and development of standards.
1. LED lights, lamps and related definitions
1, LED lights
- LED package: A component of one or more LED wafers including wire bonds or other types of electrical connectors, possibly with optical components, thermal, mechanical and electrical interfaces. The unit does not include a power supply and a standard base. The device cannot be directly connected to the branch circuit.
- LED array or module: An assembly of LED packages (components) or wafers on a printed circuit board or substrate, possibly with optical components, additional thermal, mechanical, and intended connection to the load side of the LED driver. Electrical Interface. The unit does not contain a power supply and a standard base. The device cannot be directly connected to the branch circuit.
- LED light engine: Contains an overall combination of LED packages (components) or LED arrays (modules), LED drivers, and other luminosity, thermal, mechanical, and electrical components. The device is connected directly to the branch circuit through a conventional connector that matches the LED luminaire, which is designed to not use a standard lamp holder.
- LED lamp (non-integrated): A component that contains an LED array (module) or LED package (component) and a standard lamp head. The unit is intended to be connected to the LED driver of the luminaire via a standard lamp holder. The device cannot be directly connected to the branch circuit.
- LED lamp (integrated): Contains an LED package (component) or LED array (module), LED driver, standard lamp holder and other integral combinations of luminosity, thermal, mechanical and electrical components. The device is intended to be directly connected to the branch circuit by a standardized lamp holder.
2, LED lamps
- LED luminaires are LED-based illuminating elements and matched drivers, as well as light distribution components, components that secure and protect the illuminating components, and complete luminaires that connect the appliance to the branch circuit components. Possible forms of LED-based lighting elements are LED packages (components), LED arrays (modules), LED light engines or LED lights. The LED luminaire is intended to be connected directly to the branch circuit.
- Hybrid LED luminaire: A luminaire with LED-based illuminating elements and other types of light sources such as incandescent or fluorescent lamps.
3, LED driver
LED driver: A device that contains power and LED control circuitry to operate an LED package (component), or an LED array (module) or LED.
Interpreting the above definitions related to LEDs provides a basis for us to distinguish between LED lamps and LED lamps. In general, the main difference between LED lamps and LED lamps is whether they are directly connected to the branch circuit. LED lamps are designed to be not intended to be connected to branch circuits. A directly connected product, and an LED luminaire is a product designed to be directly connected to a branch circuit.
The LED light engine is also an LED light, but its characteristics are between LED lamps and integral LED lamps. The difference from the integrated LED lamps is that it contains a connector that matches the fixture, not a standard lamp head, but the difference from the LED lamp is It cannot be directly connected to the branch circuit. Thanks to the set light distribution and standardized connectors, LED light engines can improve the maintainability of certain LED luminaires.