These bulbs use a “DimTone” (WarmGlow) effect, shifting from 2700K (warm white) down to 2200K (extra warm) as they dim, closely mimicking the amber glow of traditional incandescent candles. A key feature is the DiamondSpark optical lens, designed to create a sparkling, multi-faceted light effect, making them ideal for visible fittings like chandeliers and wall sconces.