This refers to the input voltage of the LED light bar. The commonly used specification is DC 12V, and some are 24V. Working voltage: DC12V Power: 14.3 watts per meter / 18.2 watts per meter, optional.
2. Color temperature:
It refers to heating a standard black body. When the temperature rises to a certain level, the color starts to change from dark red - light red - orange yellow - white - blue, and gradually changes. When a light source is the same color as the black body, we call the absolute temperature of the black body at that time. is the color temperature of the light source.
Generally speaking, color temperature is not an indicator for evaluating LED light strips, but many foreign customers will make a special request due to the use environment.
The color temperature of the light source is different, and the color of the light is also different:
The color temperature is below 3300K, and the light color is reddish to give a warm feeling; there is a stable atmosphere and a warm feeling, commonly known as warm color temperature.
The color temperature is in the middle of 5000--6000K, and people have no obvious visual psychological effect under this color tone, and have a refreshing feeling; so it is called "neutral" color temperature.
The color temperature exceeds 6000K, and the light color is bluish, giving people a cool feeling, commonly known as cool color temperature.
Under normal circumstances, 7500K (cool white to blue) / 6500K (positive white) / 3500K (warm white to yellow).
The basic unit of luminous intensity, the candela is one of the basic units of the International System of Units.
Generally, different colors of LED strips will have different luminous intensities, and the common unit is mcd, that is, millicandela. The higher the value, the greater the luminous intensity, that is, the brighter. This is an important indicator for evaluating the brightness of LED strips. The higher the brightness requirements, the more expensive the strips are. This is because high-brightness LED chips are expensive, and the higher the brightness, the more difficult it is to package.
4. Beam angle:
This refers to the light-emitting angle of the LED components on the LED strip. Generally, the light-emitting angle of general-purpose SMD LEDs (ie, SMD components) is 120 degrees. The larger the light-emitting angle, the better the astigmatism effect, but the brightness of the light is correspondingly reduced. When the light-emitting angle is small, the intensity of the light increases, but the range of illumination will be reduced. Therefore, another important indicator for evaluating LED strips is the light-emitting angle. There are some bad manufacturers on the market. In order to increase the brightness of the light to earn higher profits, they deliberately reduce the light-emitting angle. If you are not careful, you will buy such shoddy components.