Blue LED Holiday Lights Outdoors, house front view, showing miniature lights on bushes and door wreath, as well as a few C9 LEDs on the front fence.

Blue LED Christmas Lights Decorating Outdoors

Blue LED Christmas lights offer perhaps the most vivid blue hues you can get in a highly efficient, low heat holiday light set as the pictures below show.

Much more vibrant than incandescent blue Christmas lights, and cheaper to operate as well.  Since blue is our favorite color, we’ve decorated the house with blue light decorations for nearly a decade, and this house appeared in the local newspaper several years ago.

We share photos of those outdoor holiday light layouts here to offer ideas for your next Christmas decorating project, to illustrate some of the numerous types of LED lights available, and provide general decorating and safety tips and advice for all decorating with Xmas lights, that we’ve found most helpful.





Use Lots of Blue LED Christmas Lights

For the most eye-striking yard displays, use as many LED light strings as you can afford and safely power.  Decorate everything on your lawn and home that will hold lights.  Adorn all bushes, trees, banisters, railings, plants, fences, windows, and posts, with many little lights.  Large, high power lamps aren’t really necessary for achieving an awe-inspiring effect.  Many smaller lamps creates a more impressive display than fewer but larger units.  You can never have too  many LED lights.  Based on neighbor comments, the more we placed, the more compliments we got.

Of course, with lots of lights often comes lots of extension cords.  Follow our tips for using extension cords safely, to get ideas for best extension cord selection and proper usage.

With the extremely low power consumption of LED strings (roughly five to ten watts per string), it’s much harder to overload extension cords, even when connecting many strings into the same cord.  Nonetheless, know the power rating of each string, and assure that the sum total of all strings in a particular branch does not exceed the maximum power rating of any extension cords and cables feeding that branch.  Also, keep in mind the maximum power rating of the branch circuit itself.

Preferably, outdoor Christmas decorations should have their own separate ground fault interrupter circuit (GFIC).  Do not operate any Xmas lights outside unless they’re plugged into a GFIC outlet, or a GFIC adapter.

LED Lights Outdoors, house front view, showing miniature lights on bushes and door wreath, as well as a few C9 LEDs on the front fence.
Blue LED Christmas lights outdoors, house front view. Showing miniature lights on bushes and door, as well as a few C9 LEDs on the front fence.

Use Certified Safe Blue LED Christmas Lights Only

All LED light strings in these pictures were tested by Underwriters Laboratories for safety compliance.  Indeed, whether you’re decorating indoors or out, always assure that your Christmas lights have been adequately designed to protect against electric shock.  Keep the light strings themselves in plain sight during the day to minimize tripping hazards.  As shown next, we used outdoor strands of C9 LED lights around the picket fence, C3 Xmas lights around the tree trunks, and miniature LEDs on the bushes, porches, railings, and plants.





For outdoor applications, be sure to use only lights that clearly state that they may be used safely outdoors.  This not only reduces the possibility of electric shock, but the bulbs themselves tend to hold up better; they do not rust or corrode in the weather as much as a comparable indoor string of lights might.  Also, the light cords have UV stabilized insulation, that will crack less in the cold after long weeks in the sun.

Picture of Blue LED Xmas Lights Outdoors, house front fence with C9 LED bulb strings, and miniature blue LEDs, wrapped around big blue spruce tree trunks.
Blue LED Christmas lights outdoors, house front fence with C9 LED bulb strings. Plus, we have miniature blue LEDs, wrapped around big tree trunks.

Decorate Low to Ground if Heights Give You the Willies

If you’re not comfortable on tall ladders or otherwise afraid of heights, do not decorate on roofs or spouting areas; especially if you live in a multi-story home.  If fear prevents you from climbing with a calm and steady gait, then avoid adorning those high places.  Often, the jitters, more than the height itself, can trigger falls. And besides, in this particular season, the highest above the ground any of these decorations were, was eight feet.

If you must have some lights up high, then use only the safest fiberglass ladders.  Avoid metal ladders, not only because at this time of year, they can be too cold to handle, but also because they tend to be heavier and thus, harder to wield than fiberglass.  We used a Werner 8-foot fiberglass V ladder to put up the higher lights on the trees, as shown next.  With the ladder collapsed, we propped it against each tree, and climbed up one rung for every two or three wrap-arounds of the light strings. The tree bark could be pried out enough to anchor light cords for the most part.  But at the top, we either tied the string to a small branch, or tapped in a 2” roofing nail, and wrapped the light cord around that.

Picture of outdoor Christmas lights, house front south west view. Showing bushes, spruce trees, and porch railing adorned with glowing LED strings.
Blue LED outdoor Christmas lights, house front south west view. Showing bushes, spruce trees, and porch railing adorned with blue LED strings.

Decorate Deep into the Trees and Bushes

To create a shimmering, twinkling effect for passers by as they walk by, put lights deep inside trees and bushes.  Don’t just decorate the outer edges.  Instead of just wrapping in a circular spiral shape, use a zig-zag layout where the points of the zigs touch the center of the tree.  You’ll need more light strings doing it this way, but you’ll create a more stunning and vivid, brighter and glittering, sparkling effect as a result.  We did this on the arborvitae bushes and hedges next.  The brightness and vividness of those hundreds of blue LEDs was stunning, and drivers on the street reported seeing lots of sparkles as the lights on the far side of the bush from them, filtered through the bush branches as they passed.  Wrap lights around protruding leaves and small branches to hold them in place, or strap them down with bag ties.

Picture of Blue Outdoor LED Christmas Lights, house front bushes decorated.
Blue outdoor LED Christmas lights, house front bushes decorated.

For Every Straight Edge, Run a String of Lights

On our south porch, we ran the blue LEDs along the bottom of the upper lattice work, wrapped them around banisters, stretched them down the sides of the wheelchair ramp, and draped them around the door.  We also hung blue and white LED snowflake lights from the lattice.





To protect electrical connections, route the lights such that the plugs at each end are positioned under the roof or banister and out of direct rainfall and sunlight.  Where possible, hang plug connections vertically, so that they do not lay on the ground or anywhere rainwater or melting snow might accumulate.

Picture of holiday light decorating outdoors, house south porch. Showing LED snowflakes, and small LED strings on porch railings and banisters.
Blue LED Christmas lights decorations outdoors, house south porch. Showing LED snowflakes, and small LED strings on porch railings and banisters.

Anchor lights to Prevent them from Blowing in the Wind

The snowflake lights in the next picture often would swing violently , battering the lattice and beam posts, cracking their cases, and fraying the wires.  So we tied thin, nearly invisible fishing line between the upper lattice and the banister, near each flake.  Then, we tied the snowflake light to that string.  This reduced the swaying in the wind motion to practically zero, even on the windiest of days, protecting the lights, and quieting things down on the porch as well.

Picture of Blue LED Xmas Lights Outdoors. house south porch wheelchair ramp.
Blue outdoor LED Christmas lights. Our house south porch wheelchair ramp.

Replace Burned Out or Flickering Lamps

As was the case with the incandescent Xmas lights of generations past, LED strings are often wired in series.  So when one bulb burns out, the others may remain lit, but burn more brightly.  As a result, they run hotter and burn out more quickly.  So it’s important to replace any burned out LED lamps, as soon as you notice them.  For our display in these photos, with approximately 2,000 lights, we inspected all of them every night at dusk, and replaced as needed.  Losing three to ten bulbs per day was typical; especially after a new string operated for a few weeks.  While the more expensive light strings incorporate protective circuitry for the remaining good bulbs as some burn out, it’s still wise to keep all lights in your sets functioning properly, if for no other reason than to keep your display looking the most beautiful.

Plug the main power cords that feed your LED strings into a surge protector to help minimize burnouts.  Remember that LEDs are solid state devices, and as such, they’re sensitive to voltage spikes and surges.   So, protect them as you would your sensitive electronic computer devices.  Use surge suppressors.

Spare LED lamps can be difficult to find locally.  However, if you buy many of the same model of string, and one or two of those strings eventually fails, you can recycle the bulbs from the faulty string, and use them as your spares.  We accumulated many hundreds of good LED lamp bulbs in this way.

Picture of LED light decorations outdoors, our home south yard. Showing fence, spruce tree, ditch bridge, and ramp decorations.
Blue outdoor LED Christmas lights, our home south yard. Showing fence, spruce tree, ditch bridge, and ramp decorations.

Decorate Doors and Windows

Since doors are so reachable, decorating them with brilliance should be no problem; not even for the novice home Xmas decorator.  As shown next, we trimmed around the outer edge of the exterior door, decorated an artificial wreath with blue LEDs and a blue and white ribbon (Penn State country here), and hung that on the storm door with a brass flat hook.





Also, don’t leave the inside of your windows bare.  Though not shown in these pictures, we often place matching blue LED candles in the center of each window (one per window), and then run a light string around the inside edges of each window.

Picture of Blue LED Holiday Lights, decorated wreath hanging on west door at our home.
Blue LED Christmas lights on a decorated wreath, hanging on west door at our home.

Replace Porch Light Bulbs with Blue LED or CFL Bulbs for the Season

At the left center of the next picture, note the blue compact fluorescent bulb glowing in the porch light fixture.  LED bulbs are much less affected by cold weather than the CFLs, and though our bulb below was glowing brightly when this picture was taken, the weather was pretty warm.  CFL bulbs glow dimly in the cold, and may not brighten fully in extremely cold weather, such as what we experience here in PA.

Picture of light decorations outdoors, our home picket fence with C9 LED lamps decorating it.
Blue LED Christmas lights outside, our home picket fence with C9 LED lamps decorating it.

Blue LED Xmas lights really make your home stand out; especially in our case, as we were the only ones in the area who decorated so obsessively with them.  Even today, now that we’ve lived away from that location going on three years, people still say they miss seeing them each holiday season.  The vividness of blue LEDs helps cement them as a perpetual novelty and into the memories of those who enjoy them, because people just aren’t yet used to seeing such intense blue hues.  So if you’re looking to see cars slow as the drive by your display, go with blue LEDs.  Your home will be the talk of the town if you do.

Happy holidays !

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Revision History

  • 2019-07-06: Added key phrase targeting for ‘Blue LED Christmas Lights’, removed ad scripts, and added more tags and links.
  • 2015-10-03: Originally published.