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Question DetailsAsked on 10/25/2011

What is the typical maximum allowable watt load (outdoor lighting) for a standard outdoor power outlet?

This is for either low voltage landscape lighting or clip-on temporary floodlighting.

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2 Answers

Voted Best Answer

Hi there,

The outdoor outlets are sometimes shared and you may not have as many available watts to use. A simple trick is to take a 1600 hair dryer and put it in the outlet and let it run for a time to see if it overloads the circuit. make sure you don't have a frig in the garage on the same circuit.

Typically it is about 1900 watts per 20 amp circuit and 1440 for a 15amp. LED outdoor lights only use about 9 watts per fixture and will allow you to use a greater amount of lights and at a further distance.

Don't forget amps in this scenario either. You want to use no more than 16amps on a 20 and 12amps on a 15 amp breaker.

I have a few DIY outdoor lighting articles on my site that may help you out.

Source: http://www.theoutdoorlightingexpert.c...

Answered 8 years ago by Dallas Curb Appeal


I believe it's 16 watts with a 20-amp circuit.

Answered 8 years ago by wirtzswoodworks


I believe wirtzwoodworks meant 16 Amps, not 16 watts. That would total 1920 watts total connected load on a 20 amp circuit, INCLUDING surge load of any connected appliances.

Answered 7 years ago by LCD

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