66ft Icicle Lights for Outside Blue and White - 640 LED Twinkle

In this review of the 66ft icicle lights for outside, the bottom line is simple: these are a practical, affordable option for homeowners who want a bright, weatherproof display without fuss. The string delivers a long 66ft straight run with cascading drops and a 9.84ft power lead, making it easy to reach an outlet; the product stands out for its combination of length, energy-saving 29V LEDs and multiple light modes, which together make it useful for seasonal displays or year-round accent lighting.

Key Features

• Length and coverage: A 66ft straight lighting length with multiple drop lengths gives broad coverage for eaves, fences, or long windows.
• High LED count: 640 LEDs produce a bright, twinkling effect that fills large areas without needing extra strands in many setups.
• Energy saving and safe: UL listed and running on 29V low voltage, these lights aim to reduce power use and run safely for extended displays.
• Modes and timer: Eight lighting modes plus a 6-hour on/18-hour off timer and memory function allow varied effects and hands-off scheduling.
• Durable and outdoor-ready: Sealed beads and durable wiring plus waterproof connectors mean the string is built to resist rain and snow when the plug is protected.
• Connectable: End-to-end connectors allow up to three strings to be linked for even longer displays.

Who It's For

These icicle lights are ideal for homeowners or renters who want a long, continuous curtain of lights to dress eaves, porches, fences, or large windows during holidays like Thanksgiving and Christmas, or for year-round decorative lighting. The bright blue and white mix and twinkle options suit people who want a noticeable, festive look without professional installation.

People who need very short runs, ultra-customizable pixel control, or commercial-grade fixtures should look elsewhere. Also, if you require more than three linked strings for a massive display, plan the layout so outlets and connectors are accessible.

Pros & Cons

Pros

• Bright, attractive blue and white twinkle effect from 640 LEDs provides strong visual impact.
• Energy-saving 29V LEDs with UL listing offer safer, lower-cost operation for long displays.
• Multiple modes, timer and memory function make it easy to get varied looks without extra controls.
• Durable wiring and sealed beads are suitable for outdoor use in rain or snow when the plug is protected.

Cons

• Some users report partial failures in large sets, so occasional troubleshooting or replacement may be needed.
• Maximum of three connectable strings may limit very large installations without additional power access.

Specifications

Brand	Nielfoi
Total LED count	640 LEDs
Straight lighting length	66ft
Drop lengths	1.32ft, 1.65ft and 2.31ft
Extension cable	9.84ft power lead
Voltage	29V low voltage
Connectable	Up to 3 strings end-to-end

Our Verdict

These 66ft blue and white icicle lights are a strong value for homeowners who want an easy-to-install, bright display with flexible modes and low power draw. The long run, durable construction and timer make them a sensible choice for seasonal decorating or permanent accent lighting, though very large installations should account for the three-string connection limit.

Frequently Asked Questions

Are these lights safe for outdoor use?
Yes; the string is waterproof for outdoor use when the plug is kept protected from direct water and the product is UL listed for safety.

How many modes and does it keep the last setting?
There are eight lighting modes and a memory function retains the last selected mode after power cycles.

Can multiple strings be connected together?
Yes, the lights include end-to-end connectors and up to three strings can be linked to extend coverage.