54W LED High Bay Lights Bulb Corn
Product Name: 54W LED high bay lights bulb corn
Product Code: HSL-CN54WA
IP Rate: IP65
Power: 54 Watts
Base Holder: E40 / E39 / E26 / E27
Input Voltage: AC 85-265VAC 50/60Hz
Power Factor(PF): >0.9
LED driver: Isolated with glue protected
LED Source: SMD5730 Epistar chip
Lumen Flux: 6400LM +/-3%
Lumen Efficiency: 120lm/W
CRI (Ra): >80Ra (If only Ra>70, the lamp will be more brighter)
Beam Angle: 360 degrees
Cover Type: Clear / Frosted
Color Temperature: WW, NW,PW,CW
Materials: Aluminium body + Aluminium PCB + PC cover + Fireproof PC base
54W LED high bay lights bulb corn
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What is luminous flux? What is the unit of luminous flux?
The definition of luminous flux (phi) is the energy emitted by point-light source or non-point light source in unit time, which can produce a visual person (radiant flux that can be felt by a person), known as luminous flux.
Unit of luminous flux is lumen (lm), 1 lumen (lumen or lm) is defined as an international standard candle light source in unit 3 d arc Angle of luminous flux, through which due to the spherical area of 4 PI R2, so a lumen flux is equal to the candle power of the luminous flux emitted by 1/4 PI, PI or spherical, so according to the definition of lumens a CD will point light radiation 4 PI lumens, namely the phi (lumens) = 4 PI (candle light), I assume that delta Ω for small three-dimensional arc Angle, in the delta Ω flux within the solid Angle delta phi, is delta phi delta Ω I
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