Filament bulbs with an E14 fitting, the small fitting commonly seen in chandeliers and wall sconces. There are globe-shaped and candle-shaped bulbs, clear or with gold-tinted glass.
The Philips MASTER Dim To Warm becomes warmer in color when dimmed, just like an incandescent bulb. At a low setting, this provides a warm, calming light instead of a grayish glow.