Outdoor Christmas lights have to deal with rain, snow, and long hours switched on, so it pays to choose sets built for it. Modern LEDs use a fraction of the power of old incandescent strands and stay cool to the touch.
We compared waterproof ratings, length, connectability, and bulb styles, from fairy-light strings for trees to classic C9 bulbs for rooflines.
What to Look For
- Waterproof rating: IP44 or higher handles rain and snow; check the plug and controller too.
- Length and connectability: End-to-end plugs let you link sets to cover long rooflines from a single outlet.
- Bulb style: Mini or fairy LEDs suit trees and bushes; big C9 bulbs give the classic roofline look.
- Modes and timers: Built-in timers turn lights on at dusk automatically and save energy.
- Color: Warm white looks traditional; multicolor reads as festive and playful.
Our Top Picks
QUWIN 300 LED Outdoor String Lights, 115 ft
QUWIN's 300-LED strand stretches 115 ft with an end-to-end plug, 8 modes, and an IP55 rating for outdoor use.
Long enough to wrap a large tree or outline a porch.
Connectable 200 LED String Lights with Timer, 66 ft
This waterproof 66 ft set adds a timer, memory function, and 13 modes on clear wire.
The timer means you never have to remember to switch them on.
Brightown 100 ft C9 LED Christmas Lights
Brightown's 100 ft C9 set uses large strawberry-cut bulbs for the classic roofline look, extendable and UL certified.
The go-to style for outlining a house.
Wintergreen Lighting C9 OptiCore LED Lights
Wintergreen's OptiCore C9 LEDs are commercial-grade bulbs that hold up season after season.
Worth it if you put up a big display every year.
How We Chose
We chose outdoor-rated LED sets in the two styles people actually buy, fairy strings and C9 bulbs, then compared length, connectability, and timers.
Bottom Line
QUWIN's 115 ft strand is the best all-around outdoor string light. Brightown's C9 set is the pick for a classic roofline, and the timer-equipped 66 ft set is the most hands-off option.
Frequently Asked Questions
Can indoor Christmas lights be used outside?
Not safely. Outdoor-rated lights have weather-resistant wiring and plugs; indoor lights aren't built for moisture.
How many light strands can I connect?
It depends on the set. LED strands can usually connect many more than incandescent ones; check the maximum on the box.
Do LED Christmas lights save money?
Yes. LEDs use far less electricity than incandescent bulbs and last much longer.
How do I hang lights on a roofline?
Use plastic gutter or shingle clips rather than nails or staples, which can damage the wires and your roof.
