Assertion: fluorescent lamp | /r/CapableOf | use a triphosphor mixture
Facets:
value: since the 1990s
type: TEMPORAL
Source sentences:
text: Since the 1990s, higher-quality fluorescent lamps use either a higher-CRI halophosphate coating, or a triphosphor mixture, based on europium and terbium ions, which have emission bands more evenly distributed over the spectrum of visible light.