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[5050 lamp beads] What is the calculation formula of the lit bead flowing value?

[5050 lamp beads] What is the calculation formula of the lit bead flowing value?
Time:2022-10-09 00:00:00 | view:

[5050 lamp beads] What is the calculation formula of the lit bead flowing value?

5050 lamp beads LED lumen value calculation formula?

: According to the spectral radiation flux φ (λ), the light flux formula is obtained:

φ \u003d km ■ φ (λ) GV (λ) dλ

formula, V (λ) - relative spectral light vision efficiency;The maximum value of KM -radiation spectral lighting performance is LM/W.In 1977, the KM value was determined by the International Metrology Commission to 683LM/W (λm \u003d 555nm).

For 5050 lamp beads, is the liquidity of LED better and better?

Answer: In principle, the so -called LED lumen is the so -called optical flux. The number of lumens emitted by 1W is also luminous efficiency. Therefore, the higher the optical flux created by 1W represents the better the lighting efficiency.However, the increase in light flux is achieved by increasing the current. This may bring 2 negative effects: 1. The current is easy to cause light decay.2. After the optical flux is high, the color rendering will decrease.These two indicators are the most critical indicators to measure LED.
 
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