When it comes to buying lamps for decoration, how to judge the quality of lamps?
Lamps
One: Industrial Design - Lamp Body
Different lamp bodies and materials affect the heat dissipation of lamps, such as the spotlight I am holding. The one-piece die-cast aluminum lamp body has a good texture.
spotlight industrial design
This lamp body also supports unilateral 25° angle adjustment, and has an angle reference line
angle adjustment scale mark
This greatly improves the time when the spotlight is washing the wall. Angle adjustment efficiency.
And the direction can be rotated and adjusted. One advantage of this design is that it is convenient when installing the light. If the direction cannot be adjusted and the error is large, the whole thing must be removed and reinstalled. This rotating design is quite user-friendly
From the perspective of industrial design, good lamps must meet the requirements of good heat dissipation, high efficiency, and humane angle adjustment
二: Light source quality - parameter
Color rendering index RA value , is a parameter we often use to judge the quality of a light source
High-quality light source
The closer the value is to 100, the better, and the higher the degree of color restoration. Many people only know to look at the color rendering index RA, but don’t know that they also need to look at the R9 value in the color rendering index
, which represents the color rendering of the red light source. The color rendering index of some lamps is above 80, but the R9 value is still negative, and the color will be dull and blue. Don't choose.
This is a very cost-effective 100-yuan spotlight that I often share. We used a spectrometer to measure its data. We can see that the color rendering index RA is 97.7, and the R9 has also reached 92.
High-quality lamp parameters
Parameters commonly used to judge the quality of light sources are - Blue light index
National standard GB/T20145-2006 "Photobiological Safety of Lamps and Lamp Systems" document stipulates that blue light with wavelengths between
Blue light index
Because the above values may be too professional and are limited by the lack of professional instruments for measurement, you can ask the merchant for these parameters. Another way is to look for the 3c (national standard), ce (European Union standard) and other certifications on the lamp packaging.
Lamp certification
Large certified brands are basically qualified for eye protection requirements. So don’t buy uncertified lamps.
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