Color temperature of LED tree lights
Refers to a standard black body heating, when the temperature rises to a certain degree, the beginning of the color from dark red - light red - orange yellow - white - blue, gradually change, a light source and the color of the black body together, we will be the absolute temperature of the black body at that time called the color temperature of the light source.
Generally speaking, color temperature is not used as a goal to check the LED lamp belt, but many foreign customers will make a special request due to the connection of the application environment.
Light source color temperature is different, light color is different:
The color temperature is below 3300K, and the light color is red to give the feeling of warmth; There is a prudent atmosphere, warm feeling.
Color temperature in 3000- 6000K as the center, people in this tone without a particularly significant visual mental effect, there is a refreshing feeling; So it's called "neutral" color temperature
The color temperature exceeds 6000K, and the light color is bluish, giving people a cool feeling, which is commonly known as cold color temperature.
LED tree light brightness
cd (Candela) The basic unit of luminous intensity. Candela is one of the basic units of the International System of Units.
Usually LED lights with different colors will have different intensity of light, commonly used unit is mcd, or millicandra. The higher the value, the greater the intensity of the luminescence, that is, the brighter. This is the main goal of identification LED lamp brightness, brightness request higher lamp quotation more expensive. This is because the high brightness of the LED chip price is more expensive, and the higher the brightness, the more difficult the package.
Luminous viewpoint
This is a reference to the LED component in ledLED Tree's lamp with a glow viewpoint of 120 degrees in common Dled leds, namely SMDS. The larger the luminous point of view, the better the astigmatism, but the relative, the luminous brightness is reduced. If the luminous point of view is small, the intensity of the light is increased, but the scale of the shining will decrease. Therefore, the other main objective of identifying LED lamp strips is the luminous viewpoint. There are some bad manufacturers on the market, in order to improve the luminance to earn higher profits, deliberately reduce the luminous point of view, a little accidentally, will buy such shoddy components.
