After learning these lamp knowledge, I am no longer afraid of being fooled by buying lamps

Have you traveled all over the city’s building materials and furniture markets without finding a suitable lamp? u003cbru003e A good lamp is responsible for the important task of adjusting the house atmosphere. The scattering of light and the color temperature will create different light and shadow effects, bring different visual experience to people, and also highlight the different rooms Feature. u003cbru003e u003cbru003e u003cbru003e Here is a systematic introduction to the selection method of lamps and lanterns. u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e Lighting parameters u003cbru003e u003cbru003e u003cbru003e To make lamps have better lighting effects or light atmosphere, we need to know more about lighting. u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e I believe that many people's understanding of the lighting parameters is still on the wattage. In fact, the three parameters that really affect the brightness, cooling and heating effects and lighting effects of the lighting are mainly: u003cbru003e u003cbru003e u003cbru003e Illumination intensity, color temperature and color rendering index. (Focus!) u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e Light intensity u003cbru003e u003cbru003e u003cbru003e Illumination intensity refers to the luminous flux of visible light received per unit area. The unit is lux. It is used to describe the brightness of light. The specific value can be measured with an illuminance meter. u003cbru003e u003cbru003e u003cbru003e The relationship between illuminance and lumens is: Lux u003d luminous flux / illuminated area. u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e For example, luminous flux is equivalent to water flow. Water flow is how much water flows out, flows through or flows in one second, and luminous flux (lumens) is how much light flows out, flows through or flows in one second. The illuminance is equivalent to how many lumens of light flow into an area of u200bu200bone square meter. u003cbru003e u003cbru003e u003cbru003e Illumination is what the owner cares about most: 'Is my lamp bright or not?' It shows what we often say, 'Wow, this light is too bright, it's so blinding!'. u003cbru003e u003cbru003e u003cbru003e u003cbru003e But please note that the power of the lamp is not necessarily related to the light intensity. Because the luminous efficiency of different types of lamps varies greatly, for example, the brightness of an LED lamp of about 8W and an incandescent lamp of 40W are actually equivalent. u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e Color temperature u003cbru003e u003cbru003e u003cbru003e Color temperature refers to the color of light. You can understand it as the visual temperature brought to you by light, that is, warm light, cold light, etc., in Kelvin (K). u003cbru003e u003cbru003e u003cbru003e Light with low color temperature, more red light radiation, becomes what we often call warm light; light with high color temperature increases blue radiation, and it becomes what we call cold light. u003cbru003e u003cbru003e u003cbru003e Generally, low color temperature light is suitable for quiet atmosphere and high color light for work. For general household lighting, 6500K color temperature is the upper limit. u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003e Color rendering index u003cbru003e u003cbru003e u003cbru003e The color rendering index refers to the degree to which light restores the color of an object. The higher the color rendering index, the more true the performance of the light to the true color of the object. u003cbru003e u003cbru003e u003cbru003e The higher the color rendering index, the stronger the degree of reduction, and the lower the color rendering index will increase visual fatigue. The color rendering index of sunlight is 100. Generally, outdoor lighting needs to have a color rendering index of 65 or more, and indoor lighting needs to be 80 or more. u003cbru003e u003cbru003e u003cbru003e The owner of a vegetable and fruit store often uses lights to add a 'filter' to the fruit, so the fruits you see in the store are bright and shiny. Take it home, emmmm, you know