70L 5mm LED Strobe Mini Christmas Lights with Water-Tight Coaxial Connection
Important: Requires Coaxial Power Connector for each run.
70-count 5mm wide-angle LED strobe mini lights built for commercial-grade installs. Combines the dynamic flickering strobe effect with a water-tight coaxial connection system — the most reliable connection design in the mini-light category for outdoor exposure conditions. Longer strands than the 50L version means fewer connections per run, faster installs on tall trees, and the same sealed reliability across every junction.
Built for the Job
70 wide-angle strobe LEDs on a longer strand. More bulbs per string means greater reach on a single ball — fewer string-to-string connections on tall trees and long architectural runs. The wide viewing angle maximizes light projection in every direction so the strobe effect reads from any sightline.
Built-in strobe effect. Each bulb flickers in a random pattern that creates dynamic visual movement across the strand. The effect adds energy and motion to displays that would otherwise be static — ideal for commercial properties looking to stand out, photo-driven residential installs, and any job where the customer wants the display to feel alive rather than just lit.
Water-tight coaxial connection. This is the key feature that separates these lights from standard mini-light strings. The coaxial connector creates a sealed, moisture-resistant link between strings — eliminating the failure point that kills cheaper mini-light installs after the first hard rain. Critical for commercial properties and any install where reliability over a full season is non-negotiable.
Longer runs per power tap. Low-draw LED design lets you chain long runs from a single power tap. Check the strand wattage on the product spec to calculate your max run for the circuit you're working with, and stay within safe load on a 15-amp circuit.
Commercial-grade one-piece construction. Bulb and wire are molded as a single unit. The wide-angle LED design is engineered for high-traffic commercial install conditions where lights are deployed, taken down, stored, and redeployed every season for years.
UL 588 listed. Safe for indoor and outdoor use, residential and commercial — the listing every legitimate install needs to be on.
Designed for Speed
Coaxial Power Connector required for each run. Each run of these strings connects to the power source through a coaxial power connector, which provides the same water-tight seal at the power-feed end of the run as the inter-string connections deliver throughout. Order one Coaxial Power Connector per separate run of lights — don't forget this when speccing the job.
Fewer connections per run. With 70 bulbs per string instead of 50, you handle 40% fewer string-to-string connections to cover the same total length. Each connection is one less potential failure point, one less coaxial junction to seat correctly, and a little less time on the ladder.
Pre-balled for fast wraps. Strings come ready to deploy — no untangling on a customer's lawn at 7 a.m. Pop the ball, anchor the lead, and wrap. With 70 bulbs per ball, you cover more tree before swapping to the next string.
90% less energy than incandescent. Lower draw means more strings per circuit, fewer power taps, and lower seasonal operating costs you can pass on as a selling point to commercial accounts.
Where Coaxial Strobe Strings Win Jobs
Coaxial strobe strings are the premium pick for installs where both reliability and visual impact matter. The 70L version is the right call when:
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Tall trees and long architectural runs need to minimize string-to-string connections without sacrificing the sealed connection system
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High-end commercial properties demand both motion in the display and zero tolerance for moisture-failed connections mid-season
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Photo-driven installs need dynamic motion plus the reliability to look perfect on every visit
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Coastal and high-humidity regions subject mini lights to the worst moisture exposure conditions in the field
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Multi-season permanent installs where takedown isn't part of the contract and the lights need to survive uninterrupted outdoor exposure
The coaxial connection system is also the right call when you're bidding a job against competitors using standard mini lights and need a credibility-building differentiator that holds up to a homeowner's "why are yours more expensive" question.
Trusted in Our Contractor Community
40,000+ professional Christmas light installers in our network run wide-angle mini lights on residential and commercial routes every season. The 70L coaxial strobe version is the upgrade pros reach for when motion, weatherproof reliability, and reduced connection counts all matter on the same bid.
Stock for the Season
Available in case quantities to load your trailer before the rush. Contractor pricing applies on volume — reach out for a quote on bigger builds.
Don't forget the Coaxial Power Connector — required for each separate run of lights. Stock these alongside the strings to avoid mid-install scrambling.
Product Specifications
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Bulb count: 70 LED with strobe effect
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Bulb size: 5mm wide angle
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Wire color: Green
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Max connection: Multiple strings end-to-end (see product spec for exact max)
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Connection type: Water-tight coaxial
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Power connector: Coaxial Power Connector required (sold separately)
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Usage: Indoor and outdoor
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Construction: Commercial-grade one-piece, sealed against moisture
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Lifespan: Long-life LED, up to 50,000 hours
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Certifications: UL 588 listed
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Pre-balled: Yes
Verified specifications
Every value below is pulled from the printed bag label / spec sheet. No marketing inflation.
| Bulb count |
70 LED per string |
| Spacing |
4″ |
| Effect |
Strobe (synchronized flash) |
| Total lit length |
~23 ft |
| Voltage |
120V AC |
| Wattage |
~7W |
| Connector type |
Integrated end-to-end (chain to in-line fuse limit) |
| Max strings in series |
3-4 |
| Outdoor rating |
UL Listed indoor + outdoor (GFCI outlet required for outdoor) |
Volume install scenarios
Residential tree + bush wraps
The volume pick for residential. Mini-light strings at 70 bulbs per string + 4″ spacing pair well with standard residential tree heights (6-12 ft) and standard bush sizes (3-5 ft round shrubs).
Commercial property accent lighting
Hotels, retail storefronts, HOA landscaping. The Strobe (synchronized flash) effect adds visual hierarchy without adding controller complexity — the effect is hardware-driven (no separate controller needed).
Hybrid static + effect installs
Mix Strobe (synchronized flash) strings with static (non-effect) strings on the same tree or property. Static = volume base layer, Strobe (synchronized flash) = accent layer. Reads as professional vs DIY at viewing distance.
What this mini-light string works with
- Chain limit
- Up to 3-4 strings end-to-end per the in-line fuse at the supply plug. Exceeding blows the fuse.
- Power
- Outdoor-rated GFCI outlet. Use an outdoor timer or controller for on/off scheduling.
- Mounting
- Tree-wrap from base outward; bush-drape over the surface; architectural accent stake-clip or zip-tie.
- Will NOT work with
- TRIAC dimmers (mini-light strings are not TRIAC-dimmable), 240V circuits, direct burial.
70L Coaxial Strobe Mini Lights vs the 70L 4″ archetype
| Spec |
70L Coaxial Strobe Mini Lights |
70L 4″ Concave Mini Lights |
| Bulb count |
70 |
70 LED |
| Spacing |
4″ |
4″ |
| Effect |
Strobe (synchronized flash) |
Static (no effect) |
| Total lit length |
~23 ft |
~23 ft |
| Best for |
Strobe (synchronized flash) accent / feature layer |
Volume base layer (highest density) |
How to install 70L Coaxial Strobe Mini Lights
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Plan the run length. Sum the per-string lit length. At ~23 ft per string, plan tree/bush coverage accordingly.
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Pre-test before wrapping. Plug each string in BEFORE wrapping. Swap dead strings now — not after wrapping.
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Wrap from base outward. For trees, start at the trunk base and spiral outward toward the tips. For bushes, drape across the surface and tuck behind branches.
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Chain end-to-end at the integrated connectors. Up to 3-4 strings per chain. Don't exceed the in-line fuse rating.
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Power the end of the run. Plug into a GFCI-protected outdoor outlet and a LED-rated outdoor timer. Don't exceed 80% of circuit capacity per code.
Build quality + materials
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Pro-grade LED bulbs — 5mm or coaxial-concave optic depending on variant. Sealed bulb construction resists moisture entry across multiple seasons.
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UV-stabilized wire jacket — survives outdoor cold-climate exposure for the full residential season; pull at takedown for 5+ seasons of clean reuse.
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Strobe (synchronized flash) hardware circuit — effect runs without a separate controller — plug and play.
Warranty
1-year manufacturer warranty on 70L Coaxial Strobe Mini Lights from Christmas Lights HQ. Covers manufacturing defect and bulb failure rates above 1% per season. Not covered: chain overcurrent (>max-in-series), damage from outdoor cold-climate without GFCI protection, year-round outdoor exposure beyond seasonal use.
Full warranty terms →
Questions contractors actually ask
What's the difference between the 70L coaxial strobe and the 50L coaxial strobe?
Bulb count and strand length per string. The 70L gives you more bulbs per ball, which means fewer string-to-string connections to cover the same total length. Same coaxial connection system, same strobe effect, same commercial-grade construction. Reach for the 70L on tall trees and long architectural runs where minimizing connection count matters; reach for the 50L on shorter runs or where the smaller strand size is easier to manage.
What's the difference between the coaxial strobe version and the standard strobe mini lights?
The coaxial version uses a water-tight sealed connector between strings instead of the standard plug-and-socket connection used on most mini-light strings. The sealed coaxial connection prevents moisture from migrating into the string-to-string junctions — the most common failure point on outdoor mini-light installs after a season of rain, snow, and freeze-thaw exposure. Combined with the strobe effect, this is the premium pick for commercial installs that need both reliability and visual impact.
Do I really need a separate Coaxial Power Connector for each run?
Yes. Each separate run of lights connects to the power source through a coaxial power connector — that's how the system maintains a water-tight seal from the power feed all the way through to the last bulb. One run = one Coaxial Power Connector. Stock these alongside the strings so you're not caught short mid-install.
Can I mix coaxial strobe strings with standard strobe strings?
No. The coaxial connection system requires coaxial-compatible strings throughout the run. Standard mini-light plugs won't seat into a coaxial connector and vice versa. Spec the full run on coaxial strings, with a Coaxial Power Connector at the feed end.
How many 70L coaxial strobe strings can I connect end-to-end?
Connection limits depend on the strand's wattage rating and your circuit capacity. Check the product spec sheet for the specific max-run number, then size your power taps to stay within safe load on a 15-amp circuit. Always plan for headroom rather than running right up to the limit.
Is the strobe pattern adjustable?
The strobe pattern is built into each bulb and runs continuously — there's no separate controller or pattern setting. Plug in the strand and the strobe effect runs as designed.
Are these lights safe for outdoor use?
Yes. UL 588 listed for indoor and outdoor use. The water-tight coaxial connection and commercial-grade one-piece construction are specifically engineered for outdoor exposure conditions — these strings are at their best on exterior installs.
Can I order in case quantities?
Yes. Available in case quantities for trailer stocking ahead of the install season. Contractor pricing applies on qualifying volumes — contact us for a quote on bigger builds.
Customer reviews
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