# Calculating the Circuit Size for Lights and Ceiling Fans

 How to Determine the Circuit Size for a Lighting by Calculating the Total Electrical Load…

Calculating the Circuit Size for Lighting
Electrical Question: I want to put 2 to 3 68 watt fluorescent ceiling lights, 1 ceiling fan rated at 39 watts and 1 duplex wall outlet on a 20amp circuit. I can do away with one fluorescent light and the wall outlet if needed.

This electrical question came from: Neil, from Rogersville, Tennessee

See more about Home Wiring for Tennessee

Thanks for your electrical question Neil

### Electrical Lighting Circuits

How to Determine the Circuit Size for Lighting Based on Watts

• Neil, you are on the right track to determine the wire size of the electrical circuit. Adding up the total number of watts is the best way to see what the actual load will be.
• There are typically two circuit sizes that can be used for home lighting:
• 15 amps, 120 volts which has the rated capacity ofÂ  1800 watts.
• 20 amps, 120 volts which has the rated capacity of 2400 watts.
• These calculations are based on 100% power factor.
• Keep in mind that an electrical circuit should be loaded to 80% of the rated capacity.

### Electrical Wire for the Home

Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.

### How to Install Ceiling Fans

Take the mystery out of ceiling fan wiring. Ceiling Fans are a great way to lower your energy bill and brighten up one of your favorite rooms.

### How to Install Ceiling Fans and Wiring

Step-by-step pictures – Easy wiring diagrams and installation guide – Light and fan switch variations.
Ceiling Fan Wiring

### Wiring Electrical Outlets for the Home

Home electrical wiring includes 110 volt outlets and 220 volt outlets and receptacles which are common place in every home. See how wiring electrical outlets for the home are done.

Electrical Outlets

Electrical Calculations and Formulas

 » You Can Avoid Costly Mistakes! « Here's How to Do It: Wire It Right with the help of my Illustrated Wiring Book Great for any Home Wiring Project.

## Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
Handyman, Handywomen, and Electricians
Includes:
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
....and much more.

Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.