There’s something quietly magical about the way icicle lights drip down a roofline. Blue especially carries that winter-sky feel, cool and crisp against the dark, and the right set can turn a plain porch into a scene. I’ve put together nine solid blue icicle light options that cover everything from small bedroom windows to long commercial rooflines.
The Lineup, Simplified
BOSSERN 200 LED Voice-Controlled Blue Tree Lights
YULETIME 100 Blue Faceted LED String Lights 33 ft
YEGUO 33ft 400 LED White Icicle Lights 80 Drops
oopswow 100 LED Blue and White String Lights 33 ft
YEGUO 66ft 800 LED Blue Icicle Lights 160 Drops
Wintergreen Lighting 70 C6 Blue LED String Lights 24 ft
YEGUO 165ft 500 LED Blue String Lights Green Wire
Wintergreen Lighting OptiCore 50 C9 Blue and Cool White 50 ft
YEGUO 33ft 400 LED Warm White Icicle Lights 80 Drops
Taking A Closer Look At The Options
The BOSSERN blue string lights lean into the smart-control side of holiday decorating. A voice-activated plug and a button controller let you flip modes without leaving the couch, which is honestly the kind of lazy-luxury I appreciate after wrestling with extension cords in the cold.
At roughly 75 feet of green wire carrying 200 blue LEDs, this set wraps a 6-foot tree easily or lines a moderate roofline. The 12 lighting modes cover everything from steady-on to slow twinkle, and a built-in memory chip remembers the last setting after a power cycle. For households that already run a smart speaker, the voice commands are a real timesaver.
Reasons It Performs
- Voice activation means no outdoor trek in winter weather to change patterns.
- 200 LEDs on 75 feet give a dense, even glow without dark gaps on a standard tree.
- Built-in timer and brightness adjustment let one set handle both ambient and party moods.
- Memory function means you do not have to re-pick your favorite mode after a power blip.
Things To Consider
- The voice plug requires a compatible voice ecosystem, so households without one get less value from the headline feature.
- Green wire shows through on light-colored trim, which may bother minimalists.
Who Should Grab It
Smart-home fans who want hands-free control of their holiday lights.
Look Elsewhere When
Shoppers chasing a sealed, all-weather string should consider the YULETIME 100 Blue Faceted LED instead.
YULETIME’s faceted LED set is built like a tank compared to most budget strings. The one-piece construction means the bulbs are not removable, which sounds like a downside until you remember that’s exactly why water cannot get inside.
You get 100 faceted blue LEDs across 33 feet of green wire, with bulbs spaced 4 inches apart for a tight, classic twinkle look. The faceted lens catches light at different angles, giving each bulb a subtle gem-like quality. For coastal climates or rooflines that take serious weather, this is a quietly reassuring pick.
Noteworthy Benefits
- Sealed one-piece construction keeps rain and snow out of sockets, a known weak point on cheaper strings.
- Faceted lenses scatter light for a more dimensional, gem-like glow than smooth bulbs.
- Full-wave rectification eliminates flicker, which matters for eye comfort during long December evenings.
Room For Improvement
- Non-removable bulbs mean a single failed diode effectively ends the run, so storing carefully between seasons matters.
- No mode controller or timer is included, so the glow is steady-on only.
Right Fit For
Homeowners in wet or coastal climates who want a string they can leave out without worry.
Skip It When
Decorators who want flashing modes should reach for the BOSSERN 200 LED Voice-Controlled Blue Tree Lights instead.
YEGUO’s 33 ft icicle set is the approachable entry point I wish I’d had my first year of decorating. Eighty drops in varied lengths (3, 5, 7, and 5 LEDs repeating) mimic the irregular drip of real icicles, which is the whole point.
With 400 LEDs on clear wire and eight lighting modes, you get a versatile starter string that works for rooflines, eaves, and porch rails. Clear wire blends into most trim colors, which is a quiet win for renters who can’t paint. The timer function takes the “did I leave the lights on” worry off your mental list.
Well-Handled Touches
- Varied drop lengths create a more natural, less uniform icicle silhouette than equal-length strands.
- Clear wire disappears against white trim, keeping focus on the glow rather than the cord.
- End-to-end connectability means you can scale up next year without buying a whole new system.
Points To Keep In Mind
- This run ships as white LEDs, so shoppers specifically wanting blue should look at the YEGUO 66ft 800 LED Blue Icicle Lights instead.
- Clear wire can read as visible against dark brick or stained wood, where green wire hides better.
Made For
First-time decorators testing the icicle-light look on a small roofline or porch.
Consider Something Else When
Decorators needing a much longer run should choose the YEGUO 66ft 800 LED Blue Icicle Lights 160 Drops.
The oopswow set takes the blue-icicle idea and softens it with mixed white bulbs for a frostier feel. If pure blue reads too cold or icy for your taste, the two-tone mix warms it up just enough.
One hundred LEDs spread across 33 feet on clear wire work well wrapped around indoor garlands, headboards, or small patio railings. Eight lighting modes and memory function round out a versatile little string that doesn’t lock you into a single look. I find this kind of mix-and-match set especially useful for apartment balconies.
Positive Takeaways
- The blue and white mix creates a frosted, less-saturated look that reads as festive without feeling heavy.
- Eight modes plus memory cover steady glow, slow twinkle, and chase patterns for different moods.
- Extendable design lets you link sets together for a longer run without buying all-new controllers.
Honest Caveats
- The two-tone look is not what strict blue-icicle purists want, so it splits opinion.
- At 100 LEDs across 33 ft, the spacing feels airier than denser sets, which can read thin on larger architectural features.
Best Suited To
Bedroom decorators and small-patio users who want a softer blue glow with white accents.
Reach For A Different Pick When
Decorators set on classic single-color blue should consider the YULETIME 100 Blue Faceted LED String Lights 33 ft.
YEGUO’s 66 ft icicle set is the one I point friends toward when their house has a serious roofline. With 800 LEDs and 160 drops across two-thirds the length of a bowling lane, you can cover most single-story facades with one run.
The same varied drop pattern (3, 5, 7, 5 LEDs per drop) carries over from the smaller 33 ft version, so the natural-icicle look scales up cleanly. Memory and timer functions round out a competent outdoor set that won’t have you climbing a ladder to fiddle with settings. Honestly, for medium-to-wide eaves, this hits a sweet spot.
Everyday Wins
- One 66 ft run covers most single-story rooflines without needing to link multiple strings.
- Eight modes plus memory and timer cover both decorative and set-it-and-forget-it use.
- 800 LEDs keep the glow dense enough to read from the street, not just the porch.
Practical Considerations
- The larger LED count means storage needs a bigger bin, and tangles are a real risk if you just shove it in a bag.
- Two-story installations still require multiple runs or extension work since 66 ft rarely covers both floors.
The Right Fit
Homeowners with wide eaves who want one set, not three, to handle the job.
A Better Fit Elsewhere
Decorators working with a tall tree or long fence line should consider the YEGUO 165ft 500 LED Blue String Lights Green Wire instead.
Wintergreen Lighting’s C6 set has that workhorse energy I appreciate. These are not flashy, but the build is solid and the connectability is absurd in the best way.
Seventy C6-style blue LEDs (C6 refers to a small, strawberry-shaped bulb roughly 6/8 of an inch tall) sit on 24 feet of green wire spaced 4 inches apart. The big draw is the rated ability to connect up to 44 sets end-to-end on a single plug, which covers more than 1,000 feet of coverage. For party planners and event decorators, that’s a meaningful number.
A Strong Showing
- Connect up to 44 sets end-to-end, covering more than 1,000 feet from one outlet, a real asset for events.
- Low draw of about 4.83 watts per set keeps electricity use modest even on long runs.
- Fused plugs add a layer of electrical safety during long outdoor hangs.
Less-Strong Areas
- Steady-on only with no twinkle modes, so the look is static rather than animated.
- C6 bulbs are smaller than classic C9s, so the visual impact is more subtle, which may not satisfy bold-decor shoppers.
Who Will Love This
Event decorators and party hosts who need to light long spans from a single outlet.
Not Your Match When
Decorators wanting shatterproof commercial-grade C9s should consider the Wintergreen Lighting OptiCore 50 C9 Blue and Cool White 50 ft.
The 165 ft YEGUO string is built for the “wrap the whole tree” crowd. Five hundred blue LEDs across that length let you spiral a 7- or 8-foot evergreen or run a long stretch of fence without breaking stride.
The 30V low-voltage output is a thoughtful safety detail for outdoor use around kids or pets who might tug on a strand. Eight modes, timer, and memory chip all carry over from the shorter YEGUO sets, so you get the same control on a much bigger canvas. This is the one I keep around for ambitious wrap jobs.
What Works In Its Favor
- 165 ft length handles tall trees, long fences, or wrap-the-whole-balcony ambitions.
- 30V low-voltage output adds a margin of safety around curious kids and pets.
- Timer activates with a button press and runs on a 6-hour-on, 18-hour-off cycle automatically.
- Green wire blends into most landscaping and evergreen foliage for a clean look.
Possible Compromises
- Five hundred LEDs across 165 ft means visible spacing between bulbs, so dense tree wraps may need two sets.
- Long runs take more careful untangling during takedown. Owners commonly report kinks if stuffed carelessly into storage.
Whose Shelf It Belongs On
Tall-tree wrappers and fence decorators who need serious length from one string.
Swap It Out When
Decorators focused on the classic drip-down look should pick the YEGUO 66ft 800 LED Blue Icicle Lights 160 Drops instead.
Wintergreen’s OptiCore set is the pick for decorators who never want to replace their lights again. The commercial-grade build and shatterproof polycarbonate lenses justify the upgrade for permanent or semi-permanent installations.
Fifty C9 bulbs (the larger, globe-shaped C9 size roughly 1 inch in diameter) alternate blue and cool white on 18-gauge wire with sockets spaced 12 inches apart. Parallel wiring is a quietly important detail: if one bulb goes out, the rest stay lit, which is a meaningful upgrade over cheaper series-wired strings. The IP67 rating means these shrug off serious weather, no question.
The Helpful Details
- Shatterproof polycarbonate lenses hold up to drops and storage abuse far better than glass bulbs.
- IP67 rating handles heavy rain, snow, and dust without complaint.
- Parallel wiring keeps the rest of the string lit even if a single bulb fails.
- End-to-end connectable up to 1,000 feet for commercial-scale runs.
Trade-Offs To Consider
- Higher per-bulb cost than residential sets, so the upfront investment is bigger.
- No twinkling or animation modes, just steady-on, which suits permanent installs but not party-mode users.
Built With In Mind
Restaurants, venues, and homeowners wanting a permanent holiday setup that lasts several seasons.
Where Another Pick Suits Better
Casual decorators on a tighter budget should consider the YEGUO 165ft 500 LED Blue String Lights Green Wire.
YEGUO’s warm white icicle set rounds out the list for shoppers who like the icicle-light look but want something softer than crisp blue. It shares the same 33 ft, 80-drop format as the cool-white sibling earlier in the list.
Eight modes, timer, and clear wire all carry over, so you’re getting the same architecture in a different color temperature. Warm white reads especially well indoors against wood trim, brick fireplaces, or anywhere a cooler glow would feel out of place. It is also useful for households mixing blue and white themes who need a neutral connector strand.
Strengths Worth Knowing
- Warm white reads softer and more inviting than cool blue in indoor settings.
- Same 80-drop varied-length pattern as the cool-white sibling, so the natural icicle silhouette transfers.
- End-to-end connectable for expanding into larger runs over time.
Small Caveats
- Not actually blue, so strict blue-theme decorators should skip this one entirely.
- Clear wire shows against darker surfaces, where green wire would disappear more cleanly.
Perfect Match For
Decorators building a mixed-color display who want a warm white strand for indoor accents.
Where Another Pick Suits Better
Shoppers wanting pure blue should look at the YEGUO 66ft 800 LED Blue Icicle Lights 160 Drops instead.
What To Weigh Before Buying Blue Icicle Lights
Measure Your Span First
Before anything else, measure the linear footage of the roofline, fence, or tree section you want to light. Most beginners tend to under-buy, then discover mid-install they need another string. A 66 ft set handles most single-story eaves in one run, while tall trees or long fences often need 150+ feet. Always include the lead wire distance from your outlet to the first drop, since a 9.8 ft lead is common but not universal.
Match Bulb Density To Your Surface
Bulb count and spacing change the look dramatically. A 33 ft string with 100 LEDs gives an airy, subtle glow that works for bedroom windows or small porches. A 33 ft string with 400 LEDs reads much denser and brighter, suitable for visible rooflines. For bold outdoor statements, dense counts of 300+ LEDs across the same span look fuller from the street.
Decide On Wire Color
Green wire disappears against landscaping, dark trim, and evergreen foliage. Clear wire blends into white trim and is invisible from a distance, but shows on brick, stained wood, and dark surfaces. Pick the wire color based on what your background actually is, not what looks good in a product photo.
Consider Connectability For Future Expansion
End-to-end connectable strings let you add length next year without replacing the controller. Maximum connectable sets vary widely; some cap at two or three, others at 44 or more. If you anticipate scaling up, check the rated maximum before committing.
Key Considerations Across These Picks
Where Shoppers Go Wrong
The most common mistake is under-counting length and ending up mid-roofline with a dark gap and no spare string. Measure twice, then add 10% for sag and connector slack. Another pitfall is buying a dense, brilliant set for a small indoor space where the glow becomes overwhelming. Bedroom decorators often find that 100-LED strings read more pleasantly than 400-LED versions in tight rooms.
Why Top Tier Costs More
Premium sets like the Wintergreen OptiCore charge more for parallel wiring, shatterproof lenses, and heavier-gauge wire that handle years of seasonal cycling without degradation. For a single holiday season, mid-tier strings perform fine. For a permanent restaurant patio or a multi-year outdoor setup, the upgrade pays back in fewer replacements and safer electrical performance over time.
Frequently Asked Questions
How many icicle lights do I need for my roofline?
Measure the eaves in feet, then add roughly 10% extra to account for sag and the gap between drops. A typical single-story home runs 40 to 80 feet, so most decorators need one 66 ft set or two linked 33 ft sets. For two-story homes, plan on doubling that estimate and confirming your outlet locations before ordering.
Can I leave blue icicle lights outside all winter?
Most outdoor-rated sets handle normal winter weather, including snow and freezing rain, without issue. The key spec to look for is a waterproof or water-resistant rating from the manufacturer. Even rated sets benefit from keeping the plug and controller off the ground and out of standing water, which extends their service life noticeably.
What is the difference between C6 and C9 bulbs?
C6 bulbs are smaller, roughly three-quarters of an inch tall with a strawberry shape, while C9 bulbs are larger globe shapes about an inch in diameter. C9s read bolder from a distance and suit roofline statements, while C6s give a more subtle twinkle that works well on trees or party backdrops. Both styles are common in blue icicle and string formats.
Are blue icicle lights more expensive than warm white?
Pricing varies by brand and length more than by color, but blue LEDs sometimes carry a small premium because the diodes cost slightly more to produce than warm white. For most sets on common lengths, the difference is modest and usually gets lost in length-based pricing. Shop by length and feature first, then color.
Do icicle lights use a lot of electricity?
Modern LED icicle sets are surprisingly efficient. A typical 33 ft string with 100 to 400 LEDs draws only a few watts, often under 10 watts per set. Running several sets for 6 hours nightly through December usually adds only a small amount to a monthly electricity bill, especially compared to older incandescent icicle strings.
Closing Remarks
Blue icicle lights have a way of making even a modest porch feel like a winter postcard. The right set depends on your space, your tolerance for installation, and how much weather the lights need to shrug off. Start with your measurements, pick the wire color that fits your background, and don’t overthink it. The best display is the one you actually get up on the ladder and hang.