String lights can instantly transform a dull backyard into a magical outdoor retreat. But with so many options on the market, choosing the right set can feel overwhelming. This guide breaks down everything you need to know before you buy.
1. LED vs. Incandescent String Lights
The first decision most shoppers face is whether to go with LED or incandescent bulbs.
- LED string lights use up to 80% less energy, last 25x longer (often 25,000+ hours), and stay cool to the touch — making them safer around children and pets.
- Incandescent string lights emit a warmer, softer glow that some people prefer for ambiance, but they consume more power and need replacing more often.
For most outdoor applications, LED is the clear winner — especially for string lights left on for extended periods or connected to a solar panel.
2. Plug-In vs. Solar-Powered vs. USB
Your power source affects where and how you can use your lights:
- Plug-in string lights provide the most consistent brightness and work best for covered patios, decks, and areas near an outdoor outlet. Look for a UL-certified set with a waterproof plug.
- Solar string lights are ideal for gardens and pathways without easy outlet access. They charge automatically during the day and turn on at dusk. Performance depends on sunlight — plan accordingly in shaded areas.
- USB-powered string lights are perfect for indoor use, bedroom décor, or portable setups powered by a power bank.
Our plug-in string lights collection features UL-certified waterproof options for reliable outdoor use.
3. Understanding IP Waterproof Ratings
If you plan to leave your string lights outside year-round, waterproofing matters. Look for the IP (Ingress Protection) rating:
- IP44 — protected against splashing water from any direction. Suitable for covered outdoor areas.
- IP65 — dust-tight and protected against water jets. Best for exposed garden and patio use.
- IP67 — can withstand temporary submersion. Ideal for areas prone to heavy rain or poolside decoration.
Most quality outdoor string lights carry at least an IP44 rating. Always check the product specifications before purchasing.
4. Choosing the Right Length
Measure your space before ordering. A common mistake is buying lights that are too short — leaving gaps — or too long, creating a tangled mess. Here's a quick guide:
- Small patio (10×10 ft): 33–50 ft of string lights
- Medium backyard (20×20 ft): 66–100 ft
- Large yard or event space: 200 ft or multiple connectable strands
Many of our string lights are expandable and connectable, so you can link multiple strands end-to-end for seamless coverage.
5. Light Modes: How Many Do You Need?
Modern LED string lights often come with multiple lighting modes. Our 66 ft 200 LED sets, for example, feature 8 modes:
- Combination
- In waves
- Sequential
- Slow glow
- Chasing/flash
- Slow fade
- Twinkle/flash
- Steady on
For everyday ambiance, "Steady on" or "Slow fade" are popular choices. For holiday parties, "Twinkle/flash" adds a festive energy. If you want maximum flexibility, look for sets that include a remote or memory function.
6. Wire Color: Green vs. Copper vs. Black
The wire color affects how visible the string is when lights are off:
- Green wire — blends into trees, shrubs, and garden hedges.
- Copper wire — elegant and nearly invisible; ideal for indoor use and delicate displays.
- Black wire — low visibility at night; works well on dark surfaces like pergolas or fences.
- White wire — best for bright, airy spaces and holiday trees.
7. Warm White, Cool White, or Multicolor?
Colour temperature sets the mood:
- Warm white (2700K–3000K) — cozy, inviting, and romantic. Perfect for dinner parties and everyday outdoor living.
- Cool white (5000K–6500K) — crisp, clean, and modern. Popular for contemporary spaces and holiday displays.
- Multicolor — vibrant and festive. Great for Halloween, Christmas, and birthday parties.
Browse our full string lights collection to find your perfect colour and style.
Frequently Asked Questions
Are LED string lights safe to leave on overnight?
Yes. LED string lights generate very little heat and are generally safe to leave on overnight when used as directed. Always use UL-certified lights and avoid covering them with flammable materials.
Can I connect multiple string light strands together?
Most of our plug-in string lights are expandable and connectable — you can link up to 3–5 strands end-to-end. Always check the maximum connectable wattage noted on the product packaging.
How do I keep outdoor string lights from tangling?
Wind lights loosely around a piece of cardboard or use a cord reel when storing. When hanging, start from the power source end and work outward in a single direction.
What's the difference between fairy lights and string lights?
"Fairy lights" typically refers to very fine copper wire lights with tiny bulbs, often used for indoor and decorative purposes. "String lights" is a broader term that includes larger bulb styles (G40, S14) as well as fine wire lights for outdoor use.
Do solar string lights work in winter?
Solar string lights work year-round as long as they receive adequate sunlight. In winter months with shorter days, they may illuminate for fewer hours per charge. Positioning the solar panel in the sunniest spot available maximizes performance.