Solar Christmas Lights: Light Up Your Balcony Without the Grid

In Puerto Rico, Christmas starts on the balcony. Before the tree goes up, there are already lights on the railings, the palm trees and the windows. But on an island where the power can go out without warning, decorating with extension cords has its risks—and the December electric bill adds up. That's why solar Christmas lights have become the go-to for so many Puerto Rican homes: they charge in the sun all day and turn on by themselves at night, power or no power.

This guide explains how they work, which ones to choose for your space, where to place the panel and how to get the most out of them.

Why solar Christmas lights in Puerto Rico

• They don't depend on the grid. If the power goes out, the balcony stays lit: the battery charged during the day.
• They don't raise your bill. All the energy comes from the sun.
• Fewer cords. No extension cord to the nearest outlet, which on balconies and patios is never where you need it.
• Plenty of sun. On the island, even in December, most days have enough sun hours to charge the panel.

How solar Christmas lights work

Each set includes a small solar panel connected to the light string. During the day, the panel charges a rechargeable battery; when it gets dark, a sensor turns the lights on automatically. How long they stay lit depends on battery capacity and how much sun the panel got that day: on cloudy days they'll run shorter.

Which solar lights to choose for your space

For balconies, railings and big trees: 200 LED

Our 200 LED solar lights have 65.2 feet of lit length (71.8 feet total), come in warm white or multicolor and include a remote with 8 functions. According to the manufacturer, they can run about 20 hours on a full charge. The pick for a long railing, a palm tree or a façade.

For windows, short railings and the living-room tree: 100 LED

Our 100 LED solar lights have 32.5 feet of lit length (39 feet total), warm white or multicolor, with 8 lighting modes. The manufacturer lists about 4 hours of run time—enough for the first hours of the evening, when decorations are most seen.

For a cascading effect where you do have an outlet: icicle lights

If you want an icicle effect along the roofline or balcony edge, our 288 LED icicle lights aren't solar: they plug in with their adapter and up to three sets connect together. Pair them with solar lights—icicles where there's an outlet, solar where there isn't.

How to install solar Christmas lights

1. Charge before hanging. Leave the panel in the sun for a day or two with the lights off, so the battery starts fully charged.
2. Find the sun. Place the panel where it gets direct sun most of the day, with no shade from trees, roofs or walls. In Puerto Rico, a south-facing panel usually gets the most sun hours.
3. Tilt it slightly. Staked in a planter or tied to the railing, angled a little toward the sky, it captures more light.
4. Run the string. Start at the end closest to the panel and work outward, without pulling the string tight.
5. Pick the effect. Try the modes: steady for an elegant look, waves or fade for something more festive.

Solar light decorating ideas

• The balcony railing: zigzagged in warm white for an understated look you can see from the street.
• The palm or patio tree: spiraled up from the base in multicolor.
• The living-room window: framing it, with the panel on the outside sill.
• The front door: paired with a wreath and a Three Kings print to welcome the parrandas.

For the rest of the house, see our Puerto Rican Christmas decorations guide, and for the whole season, Christmas in Puerto Rico.

Care and tips

• Wipe the panel now and then with a damp cloth: dust and sea salt reduce charging.
• Protect the connections from direct rain and keep the panel out of puddles.
• After several cloudy days, shorter run times are normal. One good sunny day brings them back.
• When the season ends, after the Octavitas, store them coiled and dry for next year.

On orders over $100, 10% off is applied automatically in the cart.

Solar Christmas lights FAQ

Do solar lights work during a power outage?

Yes. They aren't connected to the grid: they run on the battery the panel charged during the day.

How many hours do they stay on?

It depends on the model and how much sun the panel got. According to the manufacturer, the 200 LED set can run about 20 hours on a full charge, and the 100 LED set about 4 hours.

Do they work on cloudy days?

Yes, but they charge less and will run shorter that night.

Do they need batteries?

No plugging in and no swapping batteries every day: they run on the rechargeable battery the solar panel charges during the day.

Where should I put the panel?

Where it gets direct sun most of the day, with no shade, angled slightly toward the sky.