Festoon Lights: The Complete Guide to Brightening Outdoor Spaces

A terrace that glows as night falls, a garden that takes on a festive air, a balcony transformed into a warm, cosy cocoon... The outdoor festoon-style string light has become the essential accessory for creating a welcoming atmosphere. But with an overwhelming number of options available, it can be difficult to navigate the choices and select a model that is stylish, durable, and perfectly suited to your space.

No need to panic! We'll give you everything you need to know to find the perfect string lights that will brighten your evenings for years to come. Follow our guide to understand the key technical features and discover our selection of reliable, high-performance models.

How to Choose the Right Festoon Lights: 3 Key Criteria Not to Overlook

Before you settle on a model, let's review the few technical points you need to check to make the right choice.

1. Waterproofing and Durability

Outdoor use means exposure to the elements. Your string lights must be able to withstand them. The first thing to do? Check their IP (Ingress Protection) rating.

• IP44: This is the bare minimum. It guarantees protection against water splashes. Ideal if your string lights are installed under a shelter (pergola, awning, covered balcony).
• IP65: For ultimate peace of mind. This rating ensures complete protection against dust and powerful water jets. An IP65-rated waterproof outdoor string light can be left outside all year round, even in pouring rain.

Beyond the IP rating, the durability of the bulbs is crucial. Forget glass, which is fragile and dangerous. Plastic bulbs (ABS or polycarbonate) are now the standard: they are virtually unbreakable, much more resistant to impact and weather, and make for a safer installation.

2. Length and Modularity (The Connectable Option)

Before making a purchase, take out your measuring tape and measure the area you want to light. Think about the path the string lights will follow: in a straight line along a wall, in a zigzag pattern above the terrace, or wrapped around the beams of a pergola?

For large spaces or ambitious projects (like wedding string lights or a restaurant terrace), you should definitely opt for connectable string lights. This feature allows you to connect several sets end-to-end using a single plug, giving you total flexibility for your garden light decoration. A word of caution: always check the maximum number of strings that can be linked together to avoid overloading the circuit.

3. Power Source and Practical Features

Most festoon lights are mains-powered. This is the simplest and most reliable solution for permanent lighting on a patio string light or in a garden.

Some innovative models feature a USB power supply. This ultra-versatile option allows you to plug them into a power bank, a standard smartphone charger, or a computer. Perfect for portable use or for corners without a power socket.

Finally, a few thoughtful features can make all the difference:

• Dimmable: To adjust the brightness, switching from bright light for dinner to a subdued atmosphere later in the evening.
• Timer: Schedule the lights to turn on and off automatically so you don't have to think about it.
• Lighting Modes: Flashing or fading effects to turn your garden into a dance floor and liven up your outdoor party lighting.

Recommended String Lights to Consider

After testing and comparing dozens of products, here are three models that stand out for their reliability and versatility.

1. The XXL: VIVREAL G40 LED String Lights - 30 m

Why it stands out At 30 metres long with 50 bulbs, this model thinks big. Designed to cover very large areas, it is also connectable up to a total of 500 bulbs. That's enough to light up an entire park from a single outlet.

Key Strengths

• XXL Length: Perfect for large gardens, courtyards, or event venues.
• Total Modularity: Connect multiple strings for a custom installation.
• Durable: Each bulb on this outdoor bulb string light can be replaced individually, a real bonus for longevity.
• Full-Featured: Dimmable, multiple lighting modes, and a built-in timer.

Who is it for? For those with big projects, whether they are individuals with a huge garden or professionals (restaurateurs, event planners) looking for a flexible and powerful solution.

2. The Most Robust: VIVREAL G40 String Lights - 15 m

Why it stands out This 15-metre model is built like a tank. With its IP65 certification and shatterproof plastic bulbs, it's the perfect string light for those who want to make no compromises on durability. Its 50 bulbs provide dense, warm lighting.

Key Strengths

• All-Weather Resistance: The IP65 rating protects it from heavy rain and dust.
• Shatterproof Bulbs: Maximum safety thanks to ultra-resistant plastic.
• Generous Lighting: 50 bulbs over 15 metres ensures well-distributed light.
• Still Connectable: Extend it by connecting other strings from the same range.

Who is it for? For those looking for an ultra-reliable LED festoon light for daily use on a terrace, patio, or large balcony, and who want to be able to leave it outside without worry.

3. The Nomad: VIVREAL G40 String Lights - 10 m (USB-Powered)

Why it stands out Its key feature? It's USB-powered. This 10-metre string light frees you from the constraints of a wall socket. Plug it into a power bank, a phone charger... and it will light up anywhere. The ideal solution for the most unexpected situations.

Key Strengths

• Extreme Versatility: The USB port opens up endless possibilities (balcony, van, camping, impromptu party...).
• Same Durability: It retains the excellent IP65 protection rating and shatterproof bulbs.
• Compact and Versatile: Its 10-metre length is perfect for balconies, small terraces, or as accent lighting.
• Extendable: Despite its compact size, it is still connectable.

Who is it for? For nomads, campers, apartment dwellers, or anyone who wants an easy-to-deploy lighting solution, even far from a power outlet.

Haven't found what you're looking for?

Is the perfect string light for you not in this selection? Length, bulb style, features... the needs vary for every project.

Explore our complete collection of LED bulb string lights to discover a wider range of models and find inspiration for your space.

Frequently Asked Questions (FAQ)

1. What length of festoon lights should I choose for my terrace? Measure the distance you need to cover. Pro tip: plan for about 1.5 times that length to create a nice, relaxed draped effect, in waves or a zigzag, rather than a perfectly straight line. When in doubt, opting for connectable string lights is always the safest bet: you can adjust the length precisely.

2. Are LED festoon lights really weather-resistant? Absolutely, but on one condition: you must choose the right IP rating. For fully exposed outdoor use, aim for an IP65 rating. It guarantees perfect waterproofing, even against heavy rain. If you combine that with shatterproof plastic bulbs and a quality cable, you get a garden light decoration that's built to last.

3. Can I leave outdoor string lights plugged in all year round? Yes, models with an IP65 rating are designed for this. They can remain permanently installed. As a precaution, and to maximise their lifespan, it is still advisable to unplug them during long absences or in case of extreme weather (storms, heavy snowfall).