When consumers buy LED lighting fixtures, it is necessary to understand some common parameters of LED lighting products, such as brightness, wavelength, color temperature, etc., as a standard for distinguishing between good and bad. The following small series will explain the common parameters of LED lighting products for consumers, telling you how to choose LED lighting products.
1, brightness
LED light brightness includes:
Luminance L: Luminous flux of the illuminant in a unit area of ​​a solid angle unit in a specific direction. Unit: Nitta (cd/m2).
Luminous flux φ: the sum of the amount of light emitted by the illuminator per second. Unit: Lumen (Lm), which indicates how much the illuminant emits light, and the more the illuminance, the larger the lumen number.
Then: the larger the lumen number, the more the luminous flux, the higher the brightness of the lamp.
2, wavelength
LEDs with the same wavelength have the same color. It is difficult for manufacturers without LED spectrophotometers to produce pure color products.
3, color temperature
Color temperature is a unit of measure that identifies the color of a light and is expressed as a K value. The yellow light is "below 3300k", the white light is "5300k or more", and the intermediate color is "3300k-5300k". Customers can choose the right color temperature source according to their personal preferences, application environment and lighting effects and atmosphere.
4, leakage current
The LED is a unidirectional conductive illuminator. If there is a reverse current, it is called leakage, and the LED with a large leakage current has a short life.
5, antistatic ability
LEDs with strong antistatic properties have a long life and are therefore expensive. Generally, LEDs with an antistatic greater than 700V can be used for LED lighting (lighting decoration renderings).
6, life
The key to different qualities is life, and life is determined by light decay. Low light decay and long life.
7, design
Each product will have different designs. Different designs are suitable for different purposes. The reliability design of LED lighting includes: electrical safety, fire safety, environmental safety, mechanical safety, health and safety, and safe use time.
8, energy identification
The energy label is to provide consumers with information on energy consumption and benefits, and to facilitate consumers to purchase high-performance products.
EU energy symbol
The EU divides the energy efficiency of products into 7 levels, and the products with A grade have the highest energy efficiency and the G grade is the lowest.
China Energy Efficiency Label
China's energy efficiency label is a blue and white background color logo, divided into 5 levels, the meaning of each level:
Level 1: The product reaches the international advanced level, the most energy-saving, that is, the lowest energy consumption;
Level 2: Compare power saving;
Level 3: The energy efficiency of the product is the average level of the Chinese market;
Level 4: Product energy efficiency is lower than the market average;
Level 5: Market access standards (products below this level are not allowed to be produced and sold).
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