Jul 2, 2026
Is it true that the higher the wattage, the brighter the LED light?
The answer is negative. To judge whether a lighting fixture is bright enough,It is not measured by power, but by luminous flux, The total amount of visible light emitted by the light source per second
In the perception of most of us, the higher the LED power,
Is it true that the brightness becomes brighter?
The answer is negative. To judge whether a lighting fixture is bright enough,
It is not measured by power, but by luminous flux,
The total amount of visible light emitted by the light source per second.
What is power?
Power refers to the work done by an object per unit of time, in watts (w)
The higher the power, the more energy is consumed and the more electricity is consumed.
Knowing the power of a lighting fixture requires calculating the luminous flux emitted by the fixture per unit time,
Another parameter that must be clear is the luminous efficiency
Abbreviated as luminous efficiency, unit is lumens per watt (lm/w)
Different light sources emit the same amount of light flux, and the less energy consumed, the higher the luminous efficiency.
A 36W lamp with a luminous efficiency of 80lm/W and a luminous flux of 2880lm.
A 30W lamp with a luminous efficiency of 110lm/W and a luminous flux of 3300lm.
Which of these two LED lights is better?
A lamp with a light efficiency of 110lm/w and 30W is better.
Because it consumes less energy, it achieves better results and is more energy-efficient.
As we discussed in the previous section, heat dissipation is the key factor affecting the lifespan of LEDs,
If high-power lighting fixtures cannot solve the heat dissipation problem, it will lead to problems such as light attenuation, damaged lamp beads, and reduced lifespan.
So when we choose lighting fixtures,
IT is not ture the higher the power, the better.
We need pay attention to its luminous flux,
Different brands of lighting fixtures with the same wattage have different luminous efficiency, resulting in significantly different luminous flux.
