How to Choose a Good LED Luminaire.p2 indoor LED module

　　1. Light attenuation, better LED lamps have a light attenuation of<30% before 25000 hours; The main factors determining light attenuation are the quality of the light source and the differences in heat dissipation structure; The high-power light sources packaged by foreign manufacturers, such as CREE light sources, have better light attenuation than domestic packaged light sources. As laypeople, they generally cannot see the light source, and the simple judgment is mainly based on the price. The price of light sources packaged by foreign manufacturers is much higher than that of domestic packaged light sources; So if you want to purchase high-quality LED lighting fixtures, you must provide the manufacturer information of the light source.

　　2. Luminous efficiency, which is the number of lumens per watt, in LM/W, reflects the energy-saving performance of the lamp. The better the energy-saving, the higher the luminous efficiency. At present, the light efficiency of LEDs is similar to that of compact fluorescent lamps. With the improvement of LED light efficiency, CREE may produce a light source of 186lm/w this year

　　3. Is the light source a high-power LED, a straw hat lamp, or a piranha shaped LED; LED lighting fixtures use high-power LED as the light source, which is relatively expensive; However, straw hat lamps or piranha shaped LEDs are very cheap and not suitable as light sources for lighting grade lamps.

　　4. A good driving power supply can ensure the overall lifespan of the lamp. The theoretical lifespan of LED is 100000 hours, while the lifespan of general driving power supply is less than 100000 hours; In order to ensure the lifespan of the overall lighting fixture, the driving power supply is also a key link; On the other hand, LEDs must be driven by constant current. If low-cost constant voltage driving is used, it will shorten the service life of LEDs. How do ordinary consumers identify the quality of LED driver power? Look at a few parameters, including light attenuation, service life, light efficiency, and warranty period. The quality of LED lamps produced by manufacturers who dare to provide long-term warranty

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