Lux to PPFD Conversion / Calculator
Conversion - Lux to PPFD
NOTE: The conversion from Lux to PPFD (µmol m-2 s-1) varies under different light sources. For a complete discussion please see the reference listed below.
Lux to PPFD (µmol m-2 s-1)
| Light Source | Calibration Factor |
|---|---|
| Sunlight | 0.0185 |
| LED ( 6000-6500k) | |
| Cool White Fluorescent Lamps | 0.0135 |
| Mogul Base High Pressure Sodium Lamps | 0.0122 |
| Dual-Ended High Pressure Sodium (DEHPS): ePapillion 1000 W | 0.0130 |
| Metal Halide | 0.0141 |
| Ceramic Metal Halide (CMH942): standard 4200 K color temperature | 0.0154 |
| Ceramic Metal Halide (CMH930-Agro): 3100 K color temperature, spectrum shifted to red wavelengths | 0.0170 |
Multiply the Lux by the conversion factor to get PPFD. For example, full sunlight is 108,000 Lux or 2000 µmol m-2 s-1 (108,000 ∗ 0.0185).
PPFD (µmol m-2 s-1) to Lux
PPFD (µmol m-2 s-1) to Lux
| Light Source | Conversion Factor |
|---|---|
| Sunlight | 54 |
| LED | |
| Cool White Fluorescent Lamps | 74 |
| Mogul Base High Pressure Sodium Lamps | 82 |
| Dual-Ended High Pressure Sodium (DEHPS): ePapillion 1000 W | 77 |
| Metal Halide | 71 |
| Ceramic Metal Halide (CMH942): standard 4200 K color temperature | 65 |
| Ceramic Metal Halide (CMH930-Agro): 3100 K color temperature, spectrum shifted to red wavelengths | 59 |
(Multiply the PPFD by the conversion factor to get Lux. For example, full sunlight is 2000 µmol m-2 s-1 or 108,000 Lux (2000 ∗ 54).)
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