He is credited with early developments in several fields, such as incandescent lighting and telegraphy.
Skin appears less pink, and hence "unhealthy" compared with incandescent lighting.
As is well known, the lamps of the first ten or twelve years of incandescent lighting were of low economy, but had long life.
They are also more efficient than incandescent lighting, averaging between 90 and 95 lumens per watt.
For incandescent lighting, the fast-film favorite remains 3M's 640-speed, tungsten-balanced film.
No general refurbishment was ever undertaken on the units and they ran with their original incandescent lighting until withdrawal.
Room temperature and average incandescent lighting are perfectly all right.
Fluorescent & discharge lighting is more efficient than incandescent lighting.
While that seems trivial, computer recognition systems can be thrown off even by the difference between fluorescent and incandescent lighting.
The inside of the fridge is lit by incandescent lighting.