Can I run (4)100W KC Halogen lights on a stock alternator?

 

The conversion of Watts to Amps is governed by the equation Amps = Watts/Volts

For example 12 watts/12 volts = 1 amp

http://www.powerstream.com/Amps-Watts.htm

 

I know how to figure out my amps. What I don't know is if my stock alternator and take the 33amps.

 

Easily less you have anything else big drawing on it.

 

Ok, Thanks. All that I have currently is a 4W CB and a 400W power inverter which I dont use all the time and never to full capacity so I should be fine.

 

400w on a 12 volt system is only about 34 amps. Stock alternator is a 120a unit so like previously said unless you have some other heavy loads you should be more than fine.

 

Im running 4 130 watt Daylighters with 2 Hella 500's @ 55 watts a piece. I have no problem running them but if your just sitting at idle with high beams hellas and daylighters on they brown out a little bit. And I have the stock 118 amp alternator.

 

Awesome! Thanks everyone.