Which uses more power – LCD or plasma TVs?
On average, plasma TVs use more than twice the power of 32-inch LCD TVs and 2.5 times as much as conventional 32-inch widescreen televisions. Even when comparing like-for-like in terms of screen size, on average plasma TVs use around 50% more energy than similar-sized LCD TVs. However, some manufacturers point out that the power use of a plasma TV is directly dependent on picture brightness, whereas an LCD TV picture requires a constant source of illumination. The theory goes that a plasma TV should use less power over time. But in reality, plasma TVs require significantly more power to achieve the same brightness level as an LCD TV, putting something of a 42-inch widescreen hole in the theory.
