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What is the luminous flux of the lamp?

Release Time:2020-09-30 
Abst:The sum of the energy emitted by the light source and received by the human eye is the luminous flux (Φ).Unit: lumens [lm]
The sum of the energy emitted by the light source and received by the human eye is the luminous flux (Φ).Unit: lumens [lm]
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