【Lighting Knowledge】Correlated Color Temperature (CCT)
Jun 29, 2016
Definition:
Correlated Color Temperature is usually expressed in Kelvin’s of a blackbody radiator that most closely resembles the color of a stimulus of equal brightness.
Explain:
| Temperature | Source |
|---|---|
1,700 K | Match flame |
1,850 K | Candle flame, sunset/sunrise |
2,700–3,300 K | Incandescent lamps |
3,000 K | Soft (or Warm) White compact fluorescent lamps |
3,200 K | Studio lamps, photofloods, etc. |
3,350 K | Studio "CP" light |
4,100–4,150 K | Moonlight |
5,000 K | Horizon daylight, tubular fluorescent lamps or cool white/daylight compact fluorescent lamps (CFL) |
5,500–6,000 K | Vertical daylight, electronic flash |
6,200 K | Xenon short-arc lamp |
6,500 K | Daylight, overcast |
5,500–10,500 K | LCD or CRT screen |
15,000–27,000 K | Clear blue poleward sky |
Actuality Application:
Below 3300K – Warm, Healthy; Suit for home, bedroom, hotel, and can make the red more vivid.
3000K to 6000K – Neutral color, Pleasant, Comfortable; Suit for Shops, Hospitals, Offices, Hotels, Restaurants.
Over 5300K – Bright, Make people focused; Suit for Office, Conference Rooms, Classrooms, Reading room.