Projector lights sit on a stake in the yard and throw moving dots, snowflakes, or shapes onto whatever wall they're pointed at. Permanent Christmas lights from Trimlight, the company that introduced permanent holiday lighting in 2010, outline the roofline itself from a low-profile channel mounted along your trim. A projector is a quick, inexpensive way to add some sparkle for one season, while Trimlight is a one-time professional installation that gives you a crisp outline of your home, 16 million colors, and app-controlled patterns and schedules for every holiday of the year.
Below, you'll find how each option works, an overview of the pros and cons on both sides, and a category-by-category comparison covering what gets lit, brightness, light inside your home, colors and effects, weather, scheduling, daytime appearance, cost, and safety. A large FAQ at the end answers the questions homeowners ask most when deciding between the two.
A Christmas light projector shines light onto your house from the yard, while permanent Christmas lights are installed on the house itself. Both promise a festive look without a weekend on the ladder, but they get there in very different ways. Here's how each works and where it shines or falls short.
A projector is a small, weatherproof light unit on a ground stake. Laser models send out sharp points of red, green, or blue light that scatter across the wall, while LED models project larger images like snowflakes, stars, or holiday shapes, often with motion.
You plug it into an outdoor outlet, aim it at the house, and turn it on. Most run on a built-in timer or a small remote, and the whole unit comes back inside after the season.
In other words, a projector is designed as a quick, temporary decoration that sits in front of the house rather than on it.
Pros
Cons
Trimlight installs a patented channel along your roofline that's matched to your trim color, with IP68-rated bulbs set inside it at 6, 9, or 12 inch spacing. A local authorized dealer handles the installation once, and the system stays up year-round. From then on, the Trimlight Edge app controls everything: colors, patterns, motions, and schedules for Christmas and every other occasion.
The lights become part of the house rather than a decoration placed in front of it. Because the channel follows the trim and the wiring is hidden, a Trimlight roofline looks finished whether the lights are on or off. If you're new to the idea, our complete guide to permanent holiday lighting covers the basics.
Pros
Cons
The overview covers the basics. Comparing the two category by category shows where the differences matter most once the lights are actually on your house, with the quick answer for each question up front.
Quick answer: Permanent Christmas lights do. Trimlight outlines the eaves, gables, and peaks of the whole roofline, while a projector only covers the one wall its lens is pointed at.
A projector lights whatever surface sits in front of its lens. Point it at the front of the house and you get a field of moving dots or shapes across the siding, windows, and garage door, but the outline of the home itself stays dark.
Trimlight works the opposite way. The lights follow the eaves, rakes, and peaks, so the architecture of the house becomes the display. Gables read as gables and a two-story roofline looks like a two-story roofline, which is the classic look people picture when they think of a house lit for Christmas. Our guide to what trim lights are explains why outlining the roofline makes such a difference from the street.
Coverage is the other gap. A single projector only reaches the sides it faces, so wrapping corners or lighting a side gable usually means buying more units and running more cords. A Trimlight layout can cover just the front, the front and sides, or the full perimeter.
Quick answer: Permanent lights do. Each Trimlight bulb is its own light source on the roofline, so it stays sharp from down the block, while projected light fades the farther it travels from the lens.
Projected light spreads out as it travels, so dots and images look sharpest on the wall closest to the projector and softer the farther they land. Porch lights, street lights, and even a bright moon can wash out a projection, especially on light-colored siding.
With Trimlight, every bulb is its own light source sitting right on the roofline. Each point of light reads clearly from the sidewalk and from down the block, and the outline holds up whether the neighborhood is dark or brightly lit.
Quick answer: Yes, they often do. Any window in a projector's path lets the moving light into the room behind it, while Trimlight is mounted above the windows and keeps the display outdoors.
Point a projector at the front of the house and the moving dots don't stop at the glass. They drift across living room walls and bedroom ceilings all evening, which many families find distracting once the novelty wears off. Roofline lights shine along the eaves instead, so the inside of the house stays dark.
Quick answer: Not well. From the lawn, a projector has to throw its light two stories up, so a high gable gets the weakest part of the beam and set-back peaks may get none. Trimlight mounts directly on those peaks.
Height is where projectors struggle most. The higher the beam has to travel, the more it stretches and dims, so a second-story gable ends up faint and fuzzy compared with the first floor. Peaks that sit back from the front wall are often blocked entirely by the roof below them.
Trimlight is mounted on the peaks themselves. Your dealer plans each run, including tall gables and multi-level rooflines, and our post on lighting steep pitches, tall peaks, and odd angles covers what's possible on complex homes.
Quick answer: Trimlight does, with 16 million possible colors and four motion styles, compared with the handful of preset modes built into most projectors.
Most projectors come with a handful of preset color combinations and motion modes built in. What's in the box is what you get, and changing the look usually means buying a different projector.
Trimlight can mix 16 million colors and run static, twinkle, chase, and firework motions, all from your phone. You can build a red-and-green Christmas design, save it with "save as," and switch to a New Year's look a week later without anything new to buy. If you want ready-made ideas, our Christmas pattern roundup is a good place to start.
Color choice also matters more than many people expect, because the right shade depends on your siding. Our guide to Christmas light colors for white, gray, and brick houses shows how to match Trimlight colors to your exterior.
Quick answer: A projector needs setting up every season: stake it, run the cord, aim it, and pack it away in January. Trimlight needs none after its one-time professional installation.
A projector is fast to set up the first time, but it's a yearly routine: find it in storage, push the stake into the ground (sometimes frozen ground), run the cord, aim it, set the timer, and pack it all back up in January. Trimlight is installed one time by trained installers, which means the season begins with a few taps in the app instead of a trip to the garage.
Quick answer: Trimlight holds up better. Its bulbs are IP68 rated and mounted high on the trim, while a ground-level projector can be buried by snow, fogged by dew, or knocked off target by wind.
Projectors live at ground level, right where snow piles up, sprinklers spray, and dew collects on the lens. A strong wind or a bumped stake can shift the aim, so the light ends up on the lawn or the neighbor's fence until someone goes out to fix it.
Trimlight's bulbs sit up on the roofline inside the channel, and they're IP68 rated against dust and water. Nothing needs to be re-aimed, and snow on the lawn doesn't change a thing. Our post on Trimlight's IP68 waterproof rating covers what that rating means.
Quick answer: Both can, but not equally. Most projectors have a basic countdown timer, while Trimlight's app can start the display at sunset every evening and run a holiday look between dates you choose.
Many projectors include a basic timer, often a fixed number of hours on and then off, along with a small remote that only works when you're standing nearby.
The Trimlight Edge app goes much further. With Daily Schedules, the roofline can switch on at sunset by itself every evening. Calendar Events handle date ranges, such as a Christmas display that begins Thanksgiving weekend and ends New Year's Day. You can change any of it from your phone without stepping outside.
That control is a big part of why permanent lighting feels effortless after the first season. For a closer look, here's how app scheduling compares with plug-in timers.
Quick answer: A projector is a plastic unit on a stake with a cord across the lawn. Trimlight's channel is matched to your trim, so in daylight it looks like part of the roofline.
That stake and cord stay in the yard all season, often in a flower bed or across the front lawn where guests walk. Trimlight's channel is matched to your trim color, so in daylight it reads as part of the roofline instead of a decoration. Here's more on how Trimlight blends in during the day.
Quick answer: Projectors cost far less at the start but are a seasonal purchase you replace and add to. Trimlight is a larger one-time investment that keeps working year after year.
Projectors cost far less up front, which is their biggest selling point. They're also a seasonal product, so a unit that gets damaged or stops working means buying another, and covering more of the house means buying several.
A Trimlight system usually lands between $18 and $35 per linear foot installed, with most residential projects falling between $2,000 and $6,000 or more. It's a larger investment, but it's made once and used every night of the year you choose. Our 2026 pricing breakdown covers what drives the number for a specific home.
Quick answer: Trimlight is. It has no beam to aim and no cord on the lawn, while laser projectors pointed skyward can distract pilots and a drifting beam can land on a neighbor's house.
Laser projectors come with one safety issue most homeowners never consider. The FAA has cautioned that laser light displays aimed toward the sky can distract pilots, and it asks homeowners to keep the beam pointed only at the house.
Ground-level projectors also add cords across the yard, which can become a tripping hazard on dark winter evenings, and a beam that drifts can end up shining onto a neighbor's home or into a window.
Trimlight is mounted along your roofline, so there's no beam to aim and nothing that can drift onto the house next door. If you're curious how permanent lights affect the people next door, our post on whether permanent lights bother neighbors goes into detail.
Quick answer: Trimlight. It stays on the house and switches to everyday warm white, game-day colors, or any holiday look from the app, while most projectors are made for one or two holidays.
Outside of their holiday, projectors look out of place, so once the season ends they go back in a box until next winter.
Trimlight is just as useful on an ordinary weeknight. A soft warm white makes the roofline look finished every evening, and the same lights can mark birthdays, game days, or any occasion you want to celebrate. Here's more on how year-round Christmas lights work.
A projector can make a wall sparkle for a few weeks. Trimlight turns the whole roofline into a display you control every night of the year, and it's built to stay on the house for the long haul.
Trimlight's patented channel and patented bulb design are built for clean roofline installations. Each section of channel is sized to its run of roofline and finished to match your trim, and you choose 6, 9, or 12 inch spacing along with Classic bulbs (one LED) or Trimlight 3L bulbs (three LEDs) for the look you want.
Because the lights follow the eaves and peaks instead of a wall, the display looks like it belongs to the house, which is the whole point of permanent lighting. You can see the full system on our permanent Christmas lights page.
The same Trimlight roofline that runs red and green in December can switch to Halloween orange and purple, patriotic red, white, and blue for the Fourth, or a bright firework effect for New Year's Eve. Our fireworks pattern guide shows one of the effects a projector can only imitate on a wall.
A local authorized dealer measures your roofline, plans every run, and installs the system with the wiring hidden from view. You decide how much of the house to light, whether that's only the street-facing side, a few sides, or every side of the house.
If you're weighing those options, our guide to front roofline vs. full perimeter coverage walks through how homeowners decide.
Trimlight has been installing permanent holiday lighting since 2010, and more than 300 authorized dealers handle installations nationwide. Parts are covered for life under Trimlight's warranty, and labor is covered by your dealer for at least the first year, so the lights on your roofline have support well past opening night.
They're worth it as a quick, low-cost decoration for one wall, but homeowners who want the roofline outlined every year usually get more from permanent Christmas lights.
Trimlight can mix 16 million colors, while most projectors are limited to a few preset color combinations.
Warm white, gold, and amber complement stone and tan exteriors, and a red, green, and gold mix looks festive without clashing.
Trimlight is mounted along your roofline with no beam to aim, while a projector that gets bumped or drifts can end up lighting a neighbor's home.
A local authorized Trimlight dealer installs every system, and more than 300 dealers handle installations nationwide.
Trimlight's twinkle motion adds a sparkling flicker along the roofline, and pairing it with icy blue and white gives the house a frosty winter look without snowflake shapes on the siding.