Tuesday, May 27, 2008

Different in light

An example of fluorescent light!!!
Example of Tungstun

Tungstun and Fluorescent which one is better?




After some research, we had found out that Fluorescent light is better as it is more efficient than Tungsten light bulbs of an equivalent brightness. This is because a greater proportion of the power used is converted to usable light and a smaller proportion is converted to heat, allowing fluorescent lamps to run cooler.




Tungsten light has the highest melting point (3,422 °C) (6,192 °F), lowest vapor pressure and (at temperatures above 1,650 °C) the highest tensile strength. Tungsten has the lowest coefficient f thermal expansion of any pure metal. Alloying small quantities of tungsten with steel greatly increases its toughness. ( Overall Tungsten produce more heat)

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