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High-power LED lamp lifting lighting

Time:2021-02-23 View:

High-power LED lamp is a kind of LED energy-saving lamps. Compared with low-power LED energy-saving lamps, high-power LED energy-saving lamps have higher power, brighter brightness and higher price.

 

Introduction
The rated current of low-power LED energy-saving lamps is 20Ma, and the rated current over 20Ma can basically be counted as high power. General Power: 0.25w, 0.5w, 1w, 3w, 5w, 8w, 10w, etc. The main unit of brightness is lm (lumen), and the unit of brightness with low power is mcd. These two units cannot be converted. As a new green, environment-friendly and energy-saving light source, it is widely used in automobile lamps, flashlights, lamps, etc.

 

Standard
The first one can be divided into 0.5W,1W,3W,5W,10W... 100W according to the power size, which varies according to the total power of packaged postforming products.
The second type can be divided into: large-size epoxy resin package, piranha-like epoxy resin package, aluminum base plate (MCPCB) package, TO package, power SMD package, MCPCB integrated packaging, etc.
The third type can be divided into low light attenuation high-power products and non-low light attenuation high-power products according to their different light attenuation degrees.
Of course, because there are many parameters of high-power LED energy-saving lamps, there will be different classification standards according to different parameters, which will not be described here.

Function
High-power LED energy-saving lamps still belong to one kind of LED packaging products, which is the most important link in the field of general lighting for semiconductor lighting.
When using high-power LED energy-saving lamps, we must understand the problems such as light intensity distribution, color temperature distribution, thermal resistance and color rendering.
Mastering the light intensity distribution map of W-level high-power LED energy-saving lamps is necessary for the correct use of high-power LED energy-saving lamps. Manufacturers must provide customers with all kinds of LED devices.

 

Parameter indicator
Whether the color temperature distribution of high-power LED energy-saving lamps is uniform will directly affect the lighting effect; Moreover, the color temperature and color rendering index are interrelated, and the change of color temperature will cause the change of color rendering index.
The thermal resistance of high-power LED energy-saving lamps directly affects the heat dissipation of LED devices. If the thermal resistance is low, the better the heat dissipation is; If the thermal resistance is high, the heat dissipation is poor. In this way, the temperature of the device increases, which will affect the wavelength drift of light. According to experience, when the temperature rises for one degree, the wavelength of light must drift 0.2~0.3nm, which will directly affect the luminous quality of the device. High temperature rise also directly affects the service life of W-level high-power LED energy-saving lamps.
Color rendering is an important indicator of white LED. The color rendering of white LED used for lighting must be above 80

Shopping Tips
High-power LED lamp good and bad purchasing skills, the vicious competition of high-power LED market prices, the listing of a large number of unqualified products has violated the real value of high-power LED energy saving, long service life, environmental protection, etc, how to distinguish the advantages and disadvantages of high-power LED lamps should start from the following aspects:
1 Look at the overall "power factor of lamps": the low power factor indicates that the driving power supply and circuit design used are not good, which will greatly reduce the service life of lamps and lanterns, and the power factor is low, no matter how good the lamp beads are used, the lamp life will not grow.
2 look at "heat dissipation conditions of lamps-Materials and Structures": heat dissipation of high-power lamps is also very important. Lamps with the same power factor and lamp beads of the same quality, if the heat dissipation conditions are not good, when the lamp beads work at high temperature, the light decay will be very large and the lamp life will be reduced.
3 See "lamp bead quality": lamp bead quality depends on chip quality and packaging technology.
4 look at the driving power supply used by lamps. Compared with other parts of lamps, the service life of the power supply is much shorter. The service life of the power supply affects the overall service life of lamps, the theoretical life of lamp beads is 5-100,000 hours, while the life of power supply is 0.2-30,000 hours. The design and material selection of power supply will determine the service life of power supply.
5 Look at the light efficiency: the higher the light efficiency of the same lamp bead, the higher the brightness. The smaller the power consumption of the same lighting brightness, the more energy saving.
6 depending on the power efficiency, the higher the power efficiency, the higher the power efficiency, the smaller the power consumption of the power supply itself, the larger the output power.
7 is to see if it meets the safety standards? The safety standard for high-power LED lamp in China has been issued. Select high-power LED lamp according to the safety standard stipulated by the state.
8 It depends on whether the workmanship is fine.
A high-power LED lamp with good quality has different technical requirements, such as moisture-proof, dust-proof, anti-magnetic, lightning protection, etc., in addition to the main aspects mentioned above.