What is the power conversion efficiency of led fluorescent tubes?
Conversion efficiency of led fluorescent tubes power: In layman's terms, it is the ratio of output power to input power, such as: 10W
The electric power is consumed by a led tube, but only 8W electric power is used to emit light (also known as useful work), and
If the 2W electric power is heated and lost on the power supply device (also called: useless work), then the power supply of this lamp tube
Replacement efficiency is 80%.
This is a very important parameter. The higher the conversion efficiency, the less energy the power source consumes. In addition to energy saving, it also
There is a reduction in the heating of the power supply, which will extend the life of the power supply.
At the same time, the light efficiency of the LED fluorescent tube is improved. That is, the brightness is higher. For example, the same 18w, one
The luminous efficiency is 80lm/W, then the luminous flux of the led fluorescent tube is 18*80=1280lm, if the other luminous efficiency is 100lm/w
, Then the luminous flux of the led tube is 1800lm
In fact, LED tubes should pay attention to two parameters, power and luminous flux. In addition to knowing the power consumption w
, Also pay attention to the luminous flux lm. Generally, customers only know how many LED tubes they need, but ignore the brightness of the LED tubes.
The result will be a big loss.
To tell you a simple way, buy one in the illuminance meter, which is available in the market. At the same height, the same power led day
The light tube, whoever has high illuminance, knows which led tube is good.
This tells you, why the same 18wled tube, some expensive, some cheaper, because the brightness is different. Highlight
For high-degree LED fluorescent tubes, good materials must be used. A good led tube has high brightness, energy saving and long service life.
It can be used for 3-5 years. Poor LED tubes can be used for a few months to less than a year. With double the money to buy bad LED tubes, the actual consumers have suffered a lot.
