How to choose a string lights
Updated June 2026Independently researchedNo paid placement.
Look for outdoor-rated, weatherproof string lights with a warm color temperature (2700K–3000K) and durable bulbs like LED or shatterproof Edison styles. Focus on length that fits your space, easy connectivity for linking multiple sets, and an IP65 or higher rating to handle rain and snow.
What bulb type should you choose: LED or incandescent?
LED bulbs are the clear winner for outdoor use. They run cooler, use a fraction of the electricity, and last tens of thousands of hours, meaning you won’t be swapping bulbs every season. Incandescent string lights give a warmer, nostalgic glow and can be dimmed without flicker, but they get hot and are less efficient. If you plan to leave lights up year-round, LED is the safer, more cost-effective choice. Many modern LED string lights now offer that same amber glow with a warm color temperature, so you don’t sacrifice atmosphere. Just check the lumens; a string that’s too bright can feel harsh outdoors.
How do bulb size and shape affect the look?
The most common shapes are classic globe, Edison / vintage, and mini fairy lights. Large globe bulbs (roughly the size of a tennis ball or larger) cast a wide, soft glow and work well over dining tables or gathering areas. Edison bulbs have exposed filaments that give a stylish, bistro-like ambience, but they’re often more fragile. Mini fairy lights are great for wrapping trees or creating a subtle twinkle, but they won’t provide functional illumination. Choose a bulb style that matches the mood you want: bigger bulbs for task lighting, smaller for accent. And always confirm the bulbs are shatterproof (usually plastic or silicone-coated glass) if the lights will be in high-traffic or windy spots.
What light color temperature feels best outdoors?
Stick with warm white, typically in the 2700K to 3000K range. It mimics the cozy amber of incandescent bulbs and keeps outdoor spaces from feeling sterile or like a hospital. Cool white or daylight temperatures (5000K and above) can feel harsh and attract more flying insects. Some string lights offer color-changing options, but for a classic patio look, warm white is the standard. A few brands now let you select color temperature at purchase, so you can match existing porch or landscape lighting. If you want a softer, romantic glow, look for lights described as “soft white” or “amber.”
How to check weatherproofing and durability ratings?
Look for an IP rating on the packaging. IP65 or higher means the string is protected against dust and low-pressure water jets, enough for rain, snow, and garden hose sprays. Many budget-friendly lights only have IP44 (splashproof but not fully sealed), which can fail after a wet season. Also check the cord quality: a thick, rubber / PVC cord with a grounded plug is more durable than a thin plastic wire. Bulbs should be labeled as shatterproof or break-resistant. For coastal areas, look for UV-resistant and corrosion-proof hardware. A warranty of one to three years is a good sign the manufacturer stands behind its weatherproofing.
How long should your string lights be and how do you connect them?
Measure your intended space before buying. Most standard sets are 20 to 50 feet long, but you can link three or four sets end-to-end (check the wattage limit in the manual). If your patio is larger, choose a heavier-gauge wire that can handle higher loads without overheating. The spacing between bulbs matters too. For a bistro look, bulbs 12 to 18 inches apart create a solid wash of light. Wider spacing (24 inches or more) works better for accent lighting. For connectivity, look for plugs on both ends so you can daisy chain multiple strands and run them in different directions.
How to install string lights without hassle?
You don’t need complex wiring. Most string lights plug into a standard outdoor outlet. Mount them using screw hooks, zip ties, or poles with built-in stakes. For a draped effect, plan to attach one end higher than the other or use a center support like a pergola beam. If you lack a nearby outlet, a heavy-duty outdoor extension cord works fine, just keep the connection off the ground and protected from moisture. Some smart string lights come with timers or app controls, which make setup easier and let you automate the lights to turn on at dusk. Always turn off and unplug before installing or adjusting bulbs.
Frequently asked questions
What length of string lights do I need for a standard patio?
Measure the perimeter or the line you want to cover. For a typical 10x10-foot patio, one 25- to 30-foot string is enough for a single strand. If you want to drape it crisscross, buy two and connect them, just check the maximum linked wattage.
Can I leave outdoor string lights up all year?
Yes, if they are rated IP65 or higher and built with UV-resistant materials. Freeze-thaw cycles and direct sun can degrade lower-rated lights. Remove and store lights during severe storms or heavy snow to extend their life.
Are LED string lights more expensive to run than incandescent?
No. LED bulbs use about 80 to 90 percent less electricity than incandescent for the same brightness. A typical LED string running 5 hours a night adds only a few dollars to your monthly bill, while incandescent can cost several times more.
Do string lights come with a dimmer or timer?
Many sets now include a dimmer switch or a timer built into the plug. Some also work with smart plugs or mobile apps. If dimming is important, look for lights labeled “dimmable” and confirm compatibility with your dimmer.
Can I use string lights with an extension cord?
Absolutely, but use a heavy-duty outdoor-rated cord rated for the combined wattage. Keep the plug connection off the ground and inside a weatherproof cover or a protected area to avoid short circuits.
How far apart should bulbs be spaced on a string?
Common spacing is 12 to 24 inches. Tighter spacing (12 inches) gives brighter, continuous light; wider spacing (18 to 24 inches) creates a softer, more decorative look. Check the product details because spacing affects how many total bulbs you get and the overall feel.