Published at Saturday, October 17th 2020, 03:39:43 AM by Ada Muller. Ceiling Lamp.
5.Incandescent lamps contribute more to heating. This is true (in fact the reason they are so ineffective is that they give out about 85% of their energy as heat, not light). But do we buy lamps to produce heat or light? Do we want this heat in warm weather when we may want light? Do we want the majority of this heat near the ceiling of a room, where most lamps will be?