Real warm-white bulbs do not always need to be associated with high costs. Philips' Master LEDbulb DimTone offers you the same colour of light as a conventional lamp with the advantage that it consumes less energy. The bulb can be dimmed using a trailing edge dimmer. When dimmed, the colour of light changes from 2700K to 2200K, which is the same effect as when dimming a filament lamp. The product has an energy efficiency index of A+. The weighted consumption is 15kWh/1000h.