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What Your Electrician Wants You to Know About Holiday Lighting

Offering expert residential electrical services across Apex, Raleigh, and Durham

The holidays are a time to celebrate, gather, and brighten up your home both inside and out. But before you start hanging lights or plugging in decorations, it’s important to make sure your electrical setup can handle the extra demand.

Each year, thousands of homeowners experience power issues during the holidays that could have been avoided with a few simple precautions.

To help you stay safe and festive, here’s what your local electrician wants you to know about installing holiday lighting the right way.

1. Inspect Old Lights and Cords Before You Hang Them

Before plugging in any string of lights from last year, take a few minutes to inspect them closely. Look for frayed wires, broken sockets, missing bulbs, or cracked insulation. Damaged cords can create a hazard or trip your circuit breakers when plugged in.

If you find any issues, it’s best to replace the strand completely. When buying new lights, look for UL-listed or ETL-certified products, which meet recognized safety standards.

Pro tip: Switch to LED holiday lights if you haven’t already. They use significantly less power, produce less heat, and reduce the risk of overloading a circuit.

2. Plan Your Lighting Layout Before You Start

Before climbing a ladder or untangling cords, map out where you want your lights and decorations to go. Count the outlets available and plan how each strand will be powered. Overloading a single outlet or power strip can lead to tripped breakers or even melted wires.

Outdoor displays should be plugged into GFCI-protected outlets, which automatically shut off power if moisture or a short circuit is detected. If your Apex home doesn’t have them, contact AstroWatt Electric to have them professionally installed before your holiday decorating begins.

3. Understand How Not to Overload a Circuit with Christmas Lights

This is one of the most common mistakes homeowners make. Each circuit in your home is rated for a specific amount of power (measured in amps). When too many lights or inflatables are connected to the same circuit, it can overload and trip the breaker.

To avoid this, follow the 80% rule: never exceed 80% of a circuit’s maximum load. For example, a 15-amp circuit should only handle up to 12 amps of continuous load.

Here’s a simple way to calculate your lighting use:

  1. Find the wattage listed on your light strands.
  2. Add up the total wattage of all lights on a single circuit.
  3. Divide that total by 120 (the voltage of a standard household circuit). If the number is close to or above 12 amps, plug some of the lights into another outlet on a different circuit.

If you notice breakers tripping often, it might be time for an electrical panel upgrade to give your home the capacity it needs for holiday decorating and future power demands.

4. Use Outdoor-Rated Extension Cords and Hardware

Not all extension cords are created equal. For outdoor lights, always use cords labeled “for outdoor use” or “weather-resistant.” They’re designed to handle moisture, temperature changes, and UV exposure.

Never run cords through windows, doors, or under carpets. Doing so can pinch the insulation and create a shock risk. Keep all plugs and connections off the ground when possible and cover them with weatherproof covers or cord protectors.

If you need additional outlets, don’t use cheap multi-plug adapters. Instead, have a licensed electrician install a dedicated outdoor circuit or outlet to handle your holiday lighting safely.

5. Practice Ladder and Roof Safety

Many holiday injuries have nothing to do with electricity – they happen when hanging lights. Always use a sturdy ladder on level ground and keep it clear of power lines and trees. Avoid climbing on wet or icy surfaces and never stretch too far to reach an area.

If you’re installing lights on your roofline, use plastic clips instead of nails or staples, which can damage the wires and cause shorts.

6. Turn Lights Off Overnight and When You’re Away

Even safe installations can pose risks if left on for too long. Use a timer or smart plug to automatically turn your lights on at dusk and off late at night. This helps prevent overheating and conserves energy.

If you’re traveling during the holidays, unplug decorations before you leave. A few simple steps can protect your home and reduce energy waste while you’re gone.

7. Keep an Eye on Circuit Breakers

Your circuit breakers are your home’s first line of defense against electrical overloads. If a breaker trips, it’s doing its job but it’s also a sign that something may be drawing too much power.

Frequent trips can indicate you’ve overloaded a circuit, have a damaged light strand, or need professional inspection. If it keeps happening, call AstroWatt Electric at (984) 204-7648 for help identifying the cause before it turns into a larger issue.

Brighten the Season Safely

Holiday lighting should bring joy, not risk. With careful planning, the right materials, and a bit of electrical awareness, you can safely light up your home for the season.

If you’re unsure whether your circuits or outlets can handle your holiday setup, contact AstroWatt Electric for expert advice and inspection. Our team can ensure your system is ready for the extra demand and give you peace of mind all winter long.

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