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Question:

What is the difference between the luminous efficiency of LED and the luminous efficiency of lamps?

What is the difference between the luminous efficiency of LED and the luminous efficiency of lamps?

Answer:

The luminous efficiency of LED is the light effect of light source. The whole lamp will have different amount of light source, and some will have lampshade, which will change the light effect of the whole lamp. That's all.
The luminous efficiency of an LED light source refers to the lumen value of the light source per WLuminaire efficiency: light source total lumen value * power efficiency * lens (reflector cup) transmittance / whole lamp total power
It is the lamp light efficiency: input power is equal to the total flux divided by the lamp bulb in the lamp as an example, the input electric power conversion 24V input current is 240 light before I do 5730+3014 red light module, significantly more than 85, then the total flux after the cover shade is 550lm. Light effect lamp: 550/ (24*0.24) =95.5lm/w.The light efficiency of general lamps is lower than that of LED, 10%-15%.
Light flux effect =LED LED (i.e., the lumen (normal) divided by the product of voltage driven by current value and current voltage) such as: 3528 patch specifications 20mA when the driver is 3.1V, luminous flux 8.5lm so it is light effect: 8.5/ (3.1*0.02) =137 lm/W should understand.
The whole lamp lamp, for example a 3W bulb lamp, composed of 3 lamps, each lamp light efficiency is 90, but the 3W lamp is not 3*90=270, because other factors what shade, will be less than this value

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