Phot (ph)
A phot (ph) is a photometric unit of illuminance, or luminous flux through an area. It is not an SI unit, but is equivalent to 10000 lux.
- Microlux (µlx)1×10¹⁰
- Millilux (mlx)10,000,000
- Lux (lx)10,000
- Kilolux (klx)10
- Lumen per square metre (lm/m²)10,000
- Lumen per square centimetre (lm/cm²)1
- Foot-candle (fc)929.03
- Phot (ph)1
- Nox10,000,000