Calculating LED bulb wattage?

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damo666

Member - Posts: 1

Joined: January 30, 2006

Posted: January 30, 2006 at 3:01 AM / IP Logged

Hello,

I'm looking for a bulb to use as the warning light for my alternator. The bulb needs to be less than 2w, or it will blow the alternator regulator.

I have a LED light here that has the spec's of "DC500v 100M" (its a 12v led). My calculations show that this equals a 1.44w bulb....have I calculated it correctly??

Ta

Damo

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infinkc

Copper - Posts: 438

Joined: October 28, 2002

Location: United States

Posted: February 09, 2006 at 10:40 PM / IP Logged

P=V^2/R

500v^2/100000000ohms= 0.000000223watts

There are 10 types of people in the world, ones that understand binary and ones that dont.

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Calculating LED bulb wattage?

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