The following small series of HC LED screens will explain the common parameters of LED lighting products to consumers and tell you how to buy LED lighting products. 1, brightness LED lamp brightness includes: brightness L: luminous flux of luminous body in unit area of unit solid angle in specific direction. Unit: nits (CD/m2). Luminous flux φ: the sum of the amount of light emitted by the luminous body per second. Unit: Lumens (Lm), indicating how much light is emitted by the luminous body. The brighter, the greater the lumen number. Then: the greater the lumen number, the more luminous flux and the higher the brightness of the lamp. 2. LEDs with the same wavelength have the same color. It is difficult for manufacturers without LED spectrometers to produce products with pure colors. 3. Color temperature Color temperature is a unit of measurement to identify the color of light, expressed by K value. Yellow light means "below 3300k", white light means "above 5300k", and there is an intermediate color "3300k-5300k". Customers can choose the light source with appropriate color temperature according to their personal preferences, application environment and lighting effect and atmosphere to be created. 4. Leakage current led is a unidirectional conductive lamp. If there is reverse current, it is called leakage. The LED with large leakage current has a short life. 5. Anti-static ability The LED with strong anti-static ability has a long life, so the price is high. Generally, LEDs with antistatic performance greater than 700V can be used for LED lighting. 6. Life span The key to different quality is life span, which is determined by light decay. Small light attenuation and long service life. 7. Design Each product will have a different design, and different designs are suitable for different purposes. The reliability design of LED lighting includes: electrical safety, fire safety, applicable environmental safety, mechanical safety, health safety, safe use time and other factors. 8. Energy labeling Energy labeling is to provide consumers with information such as energy consumption and benefits, so as to facilitate consumers to buy efficient products. China Energy Label China Energy Label is a color label with white characters on a blue background, which is divided into five grades. The meaning of each grade is: grade 1: the product reaches the international advanced level and is the most energy-saving, that is, the lowest energy consumption; Secondary: saving electricity; Grade 3: the product energy efficiency is the average level of China market; Grade 4: the product energy efficiency is lower than the market average; Level 5: market access standard (products below this level are not allowed to be produced and sold).