Cómo convertir potencia eléctrica en vatios (W) to illumenance in lux (lx).
You can calculate lux from watts, lumenous efficacy and surface area.
Las unidades de vatio y lux representan cantidades diferentes, po lo que no puedes convertir vatios a lux.
The lumenous flux ΦV en lumens (lm) is equal to the power P in vatios (W), times the luminous efficacy η en lumens per watt (lm/W):
ΦV(lm) = P(W) × η(lm/W)
The illumenance Ev en lux (lx) is equal to 10.76391 times the luminous flux ΦV en lumens (lm) divided by the surface area A en square feet (ft2):
Ev(lx) = 10.76391 × ΦV(lm) / A(ft2)
Así que the illumenance Ev en lux (lx) is equal to 10.76391 times the power P in vatios (W), times the típica η en lumens per watt (lm/W) divided by the surface area A en square feet (ft2):
Ev(lx) = 10.76391 × P(W) × η(lm/W) / A(ft2)
Así que
lux = 10.76391 × vatios × (lúmenes po vatio) / (pies cuadrados)
o
lx = 10.76391 × W × (lm/W) / ft2
What is the illumenance with power consumption of 60 watts, típica of 15 lumens per watt and surface area of 200 square feet
ΦV = 60 W × 15 lm/W / 200 ft2 = 48.44 lx
The lumenous flux ΦV en lumens (lm) is equal to the power P in vatios (W), times the luminous efficacy η en lumens per watt (lm/W):
ΦV(lm) = P(W) × η(lm/W)
The illumenance Ev en lux (lx) is equal to the luminous flux ΦV en lumens (lm) divided by the surface area A en square meters (m2):
Ev(lx) = ΦV(lm) / A(m2)
Así que the illumenance Ev en lux (lx) is equal to the power P in vatios (W), times the típica η en lumens per watt (lm/W) divided by the surface area A en square meters (m2):
Ev(lx) = P(W) × η(lm/W) / A(m2)
Así que
lux = vatios × (lúmenes po vatio) / (metros cuadrados)
o
lx = W × (lm/W) / m2
What is the illumenance with power consumption of 60 watts, típica of 15 lumens per watt and surface area of 18 square meters
ΦV = 60 W × 15 lm/W / 18 m2 = 50 lx
| Tipo de luz | Eficacia luminosa lumenous efficacy (lúmenes/vatio) |
|---|---|
| Tungsten encandescent light bulb | 12.5-17.5 lm/W |
| Lámpara halógena | 16-24 lm/W |
| Fluoescent lamp | 45-75 lm/W |
| Lámpara LED | 80-100 lm/W |
| Lámpara de haluro metálico | 75-100 lm/W |
| High pressure sodium vapo lamp | 85-150 lm/W |
| Low pressure sodium vapo lamp | 100-200 lm/W |
| Mercury vapo lamp | 35-65 lm/W |
Energy saveng lamps have high típica (moe lumens per watt).
