Christmas · Comparison

Outdoor Christmas lights compared: LED vs incandescent, bulb sizes, and our picks

By the HolidayDecor.com editors · Updated Nov 2, 2026

Outdoor lights are where a holiday display really comes together, and also where it's easiest to buy the wrong thing. The good news: once you know three decisions, the choice gets simple. LED or incandescent. Which bulb size. Which color of white (or no white at all).

We'll compare each option side by side, then match them to the job: rooflines, trees, shrubs, railings, and walkways. Picks at the end cover budget, mid-range, and splurge.

LED vs incandescent

For most outdoor displays, LED is the practical pick, especially across a long roofline where power and durability add up. Incandescent still wins on pure nostalgia, and a short run of classic C9s over the door can be the most charming thing on the block.

Mini, C7, or C9?

Mini lights

Small and twinkly. Best for wrapping trees, shrubs, railings, and garland. They create a sparkle effect up close, and they look like a soft glow from far away.

C7 bulbs

Medium, roughly the size of a fingertip. A good fit for single-story rooflines, windows, and walkways where you want classic bulbs without going huge.

C9 bulbs

The big classic bulb. They read clearly from the street, which makes them the go-to for rooflines, gutters, and tall peaks. If you want that "house in a holiday movie" look, this is it.

Warm white, cool white, or color?

• Warm white looks like candlelight. Classic, cozy, and flattering on brick, wood, and stone.
• Cool or pure white is crisp with a slight blue tone. It feels modern and wintry, and looks great with flocked greenery and silver accents.
• Multicolor is cheerful and nostalgic, especially on trees and shrubs.
• Single color (all red, all blue) makes a bold statement on a roofline.

Tip: pick one white and use it everywhere. One consistent white across the whole house is what makes a display look polished and intentional.

Match the white to the house

Warm white tends to look richest on red brick, stone, wood, and cream or yellow siding. Cool white looks crisp against gray, white, and blue siding and modern dark exteriors. If you're stuck, hold one strand of each against the house at dusk and go with your eye.

Pre-made strands

Bulbs are already attached at a set spacing. Easy, affordable, and perfect for most homes.

Stringers plus bulbs

This is how many professional installers work. You buy an empty socket cord (the stringer) and add the bulbs you like. You can cut many stringers to exact length, swap bulb colors any year, and replace a single bulb if it goes out. It costs a bit more up front and pays you back in flexibility.

Smart lights

App-controlled lights from brands like Govee and Twinkly change colors and effects from your phone. One set can cover Christmas, then switch colors for game day or the Fourth of July. They're a splurge per foot, so many people use them on a focal tree or the front of the house and use standard lights elsewhere.

Match the light to the job

• Roofline and gutters: C9 (or C7 on a small single-story) with gutter clips. Measure the run first.
• Trees: mini lights, wrapped trunk to branch tips. More strands look lusher.
• Shrubs and hedges: net lights or minis draped evenly.
• Railings and columns: minis or lit garland wrapped in a spiral.
• Walkways: C9s on stakes, or lit path markers.

Not sure how much to buy? Use our how many lights do you need calculator for rooflines and trees.

What you get as you spend more

• Budget: standard pre-made LED strands. Easy to find, simple to hang, and great for trees, shrubs, and railings.
• Mid-range: commercial-style strands and stringers with thicker wire and sturdier sockets. They are built for many seasons outdoors and are a favorite for rooflines.
• Splurge: smart, app-controlled lights with color and effect control, schedules, and reuse across other holidays.

A practical approach: put the most money into the roofline, since it's the most visible run and the hardest to redo, and use budget strands for shrubs and railings.

How to hang roofline lights

1. Measure and sketch. Know every run's length and where the outlet is before you buy.
2. Test every strand on the ground. It's much easier to swap a bulb before it's up on the gutter.
3. Clip, don't nail. All-in-one plastic clips fit most gutters and shingles and keep bulbs pointing the same direction.
4. Start at the outlet end. Work away from the power source so the plug end is where you need it.
5. Keep bulbs upright and evenly spaced. That consistency is what makes a roofline look professional.
6. Set a timer. Dusk to bedtime is a common schedule.

Outdoor lights questions

Can I use indoor lights outside?

Use lights labeled for outdoor use outside. Outdoor-rated lights are built to handle moisture and temperature changes. Indoor-only lights belong inside.

Can I mix LED and incandescent on the same circuit?

You can use both on a house, but connect each type only to its own kind, and follow each package's connection limits. Visually, it's best to keep one type per area so the color temperature stays consistent.

When should I put lights up?

Many people hang them in early to mid November while the weather is milder, then switch them on after Thanksgiving.

Our picks

Outdoor safety basics

• Use lights, extension cords, and timers rated for outdoor use outside.
• Follow the maximum connected-strand number on the package.
• Plug outdoor displays into a GFCI-protected outlet.
• Use plastic gutter and shingle clips rather than nails or staples.
• Work with a partner on ladders, and check the forecast before you start.

For more, see the National Fire Protection Association's winter holiday safety guidance. If a two-story roofline sounds like a job for someone else, that's a very reasonable call.

More display ideas live on our Christmas hub, and our front porch guide covers wreaths and garland.