Convert Megalux to Phots
Convert Megalux (Mlx) to Phots (ph) instantly and accurately.
Conversion Formula
ph = Mlx × 100
About Megalux
The megalux (Mlx) equals 10⁶ lx. Reached only by extreme short-range sources: a short-arc xenon lamp at 5 cm produces ~1-10 Mlx; pulsed photographic strobes at close range several Mlx. The full solar disc on Earth's surface gives ~100 klx - far below 1 Mlx. 1 Mlx = 10⁶ lx.
About Phots
The phot (ph) equals 1 lm/cm² = 10 000 lx. The CGS-photometric unit of illuminance. Pre-SI optics texts express daylight in phots: full tropical sunshine is ~10 ph (100 klx); overcast sky ~0.1-0.2 ph. Wholly superseded by lux and kilolux in modern standards. 1 ph = 10⁴ lx.
Quick Reference Table
| Megalux (Mlx) | Phots (ph) |
|---|---|
| 1 Mlx | 100 ph |
| 2 Mlx | 200 ph |
| 5 Mlx | 500 ph |
| 10 Mlx | 1000 ph |
| 25 Mlx | 2500 ph |
| 50 Mlx | 5000 ph |
| 100 Mlx | 10000 ph |