Lumen (lm) is a unit used to quantify the brightness of a light source. It represents the total amount of light emitted by a light source per unit time. Simply put, lumens are a standard for measuring the "luminosity" of a light source. For example, when we say a light bulb has 800 lumens, it means that when operating, it emits a total of 800 lumens of light per second.

LED linear light fixture is a lamp composed of multiple LED lamp beads arranged in series or parallel. It usually presents a linear or strip shape and is widely used in lighting needs of various places such as commercial, industrial, and residential.

The installation height of the lamp should be coordinated with the height of the vanity to ensure that the lighting covers the entire vanity area while avoiding too high or too low illumination angles. Generally speaking, the height of the vanity ranges from 70-90 cm, so the installation height of the lamp should also be fine-tuned according to this range.