Bulb vs LED

what is the diffrence between a bulb and an led?I mean why cant we use a Bulb of low power instead of an LED???

#Physics

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Comments

for same power, led brightens more than bulb

Rahul Nahata - 7 years, 10 months ago

well,an LED has a negative and positive end but bulbs have nothing with negative or positive. quod erat demonstrandum

David L. - 7 years, 9 months ago

actually, Bulb and an LED are two totally different things...you may be knowing the full form of an LED (Light Emitting Diode). It is a diode which emits light when a particular unit of current is passed.

Using a bulb of low power instead of LED is not at all preferred since low powered Bulb will not produce as much light as an LED of same power...a bulb makes use of a lot of electrical energy to heat up the tungsten coil and only a small fraction of it is emitted as light. So, a lot of energy is wasted. But in case of an LED it used almost whole electrical energy passed through it to emit light energy. Therefore, an LED is a lot better than a Bulb in all aspects.

A Former Brilliant Member - 7 years, 7 months ago

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$