LM is the abbreviation of "Lumen", which is translated into "lumen" in Chinese. Lumen is the international standard unit for measuring luminous flux (that is, the total amount of light emitted by a light source), representing the total amount of visible light emitted by a light source per unit time.
Mirror lamps are lamps installed above or on both sides of the mirror, especially suitable for bathroom vanity lighting. Its main advantage is that it can provide uniform and bright light, avoiding shadows or uneven lighting.
Lumen (abbreviated as lm) is a unit used in the International System of Units (SI) to measure the luminous brightness of a light source. In short, the lumen value represents the total amount of visible light emitted by a light source per unit time.
If the heat dissipation design of LED lamps is poor, the high temperature of LED chips will accelerate their aging. High temperature will cause electron migration inside the chip, which will reduce its luminous efficiency and eventually lead to brightness decay.
When choosing LED lighting fixtures, consumers should focus on lumens rather than watts. Lumens more directly reflect the brightness of the lamp, while watts are mainly used to reflect the energy consumption of the lamp. Understanding the difference between the two can help consumers make more appropriate purchasing decisions.
According to the principles of physics, the greater the current, the more times the electrons and holes in the LED recombine, and the more light energy is generated, so the LED will appear brighter. For standard LED bulbs or LED panel lights, the relationship between brightness and current is usually linear - that is, the current increases, the brightness increases.
Generally speaking, the length of the vanity wall light is recommended to be no more than 1/3 of the dressing table. Specifically, for a 72-inch dressing table, a wall light with a length between 24 and 36 inches (about 61 to 91 cm) can be selected.
Color temperature is a physical quantity that describes the color of a light source, usually in Kelvin (K). The color temperature represents the degree of warmth or coolness of the color tone of the light source. Color temperature is defined by simulating blackbody radiation.
Aluminum alloy is a very suitable material for outdoor lighting fixtures, especially outdoor wall lamps. Its advantages include: ● Corrosion resistance ● Weather resistance ● Lightness ● Machinability Ordinary iron is often not recommended for outdoor lighting for the following reasons: ● Corrosion resistance ● Insufficient strength
Pros of LED recessed downlights: 1. Energy-saving and high efficiency 2. Modern and simple appearance design 3. Uniform light effect and reduced glare 4. Flexible installation methods 5. Adapt to a variety of scenarios and needs Cons of LED recessed downlights: 1. High installation requirements 2. Inconvenient maintenance 3. Restrictions on light adjustment 4. High cost
Although the LED chip itself requires direct current to work properly, most home and commercial power systems provide alternating current. Therefore, when the LED lighting downlight is working, it needs to convert the alternating current into direct current through a power driver module.
LED itself is a point light source with strong divergence of light. In LED spotlights, through reasonable optical design and the role of lens or reflector, the propagation direction of light can be changed and the divergence of light can be reduced, thereby focusing the light beam to a specific area.