How much wattage is 1 diode (LED)?

Question

What is the wattage for a diode? Does 10 diodes necessarily makes 10X of one diode's wattage?

Answer 1

read the voltage drop across the LED and read the

current flow thru it under operation ...

P = IV

watts = volts*amps

that will be your answer

/*************/

repeat measurement as required for 10 LED's ... too

many variables to give a concise answer, given the

level of understanding we're dealing with

Answer 2

very less, in milliwatts.

max current thru led = about 2mA

barrier voltage = about 2V

so, power = VI = 4mW.

for 10 led's, yes, its 10x if ckt ensures the same electrical conditions for all of them.

Answer 3

No watts at all mate

Answer 4

Power is volts * current

The color and type determines the reqruired voltage. This ranges from 1.8V for a certain red, through 2.4V for reds, oranges, greens, yellows. Violet, UV, blue and white go up to about 5V.

Low current LED's go down to 1mA at 1.8V (red) for their rated output, which is 1.8V * 0.001A = 2mW or 0.004W.

Most common LED's use 20mA at 2V or so, so about 40mW (0.04W).

Large LED's can use up to 5V and 0.6A, or 3W, and bigger ones are coming out all the time. The voltage pretty much stays the same, but the current goes up.

The circuits used to drive LED's do not always supply full voltage and current. If less voltage and current is supplied, the power is less. Resistors are often used to limit current to the LED so it is not destroyed.

Everything else being equal, 10 diodes will indeed use 10x as much power.

Answer 5

watt?

Answer 6

The amperage of one Led would depend on the voltate and resistance. Remember i = v/r. The amperage = the voltage divided by the resistance.

You can typically buy one led a piece in amperages of miliamps of 10, 40, 6.7, 17, 23, and 14.

The total amperage would depend on how they are connected, whether they are connected in series or parallel.

Answer 7

The wattage is voltage drop times current.  Depending on how bright you need it to be, the wattage of a regular LED (like for an indicator light) would be between 10 and 40 milliwatts.  The voltage drop is normally about 2 volts.  The wattage needed for 10 would be 10X as much.  The way you connect them determines whether you need more current, more voltage, or both.  You can also get some that have multiple LED's inside to give more brightness, or more of a white light.  Some of these are made to operate from a specific voltage, and have a resistor built in.  The small ones usually don't, so you have to include a resistor to limit the current to about 20 milliamps.

Answer 8

It can be as low as 1-watt for an LED.  If you connect 10 of them in series, they should take 10x the wattage of 1; or in parallel it is less.