1 / 7Knayis USB Fairy Lights, 2 Pack, 120 LEDs, 12 m
LEDs: Knayis USB Fairy Lights are listed as a two-pack of 120-LED strings, each described as 12 m long. USB power and eight lighting modes suit flexible decorative setups, while the listing’s indoor-use detail sits alongside an outdoor waterproof claim that needs clarification.
At a glance
- USB connection can draw power from compatible USB interfaces, mobile power supplies or computers, according to the listing.
- Eight selectable modes include steady-on and several flashing or fading effects.
- The listing describes bendable copper wire for shaping around furniture, gift boxes and plants.
Reference price: £9.99
Price checked: 13 Nov 2026
View offerAhead of Black FridayExplore the selectionPros and cons
Pros
- USB power offers alternatives to a nearby mains socket when a suitable USB source is available.
- Eight selectable lighting patterns provide more than a steady-on setting.
- Flexible wire is intended to be shaped for decorative arrangements.
Technical specifications
11 specifications| Brand | Knayis |
|---|---|
| Light source | LED |
| Light colour | Cool White |
| Colour temperature | 6500 Kelvin |
| Number of light sources | 120 |
| Power configuration | Corded Electric |
|---|---|
| Indoor/outdoor usage | Indoor |
| Special feature | Waterproof |
| Length claim | 40Ft length of light add 3ft lead cable, 43ft together |
|---|---|
| Lighting modes | 8 Lighting modes: combination, waving, fireflies flashing, fading, chasing/flashing, slowly fading, twinkling/flashing, steady on |
| Wire material and flexibility | high-quality copper wire, which is more durable and bendable |
What to know before buying
Listing details to confirm
The listing gives the title length as 12 m/40 ft, while a feature states 40 ft of lights plus a 3 ft lead, 43 ft total. It also lists indoor usage while claiming IP65 waterproofing and outdoor use. Confirm the actual length and intended exposure limits before buying. The title says two packs, but the included-components field names only string lights without confirming the quantity.
What’s in the box
Included- String lights
Who is it for?
A good fit for
- People seeking USB-powered decorative lights for indoor rooms, parties or seasonal displays.
- Buyers who want several selectable light patterns and flexible wire for shaped decorations.
Less suited to
- Buyers who need a confirmed outdoor-rated setup or a precisely established total cable length.
- Anyone needing a confirmed two-string package quantity before purchase.
Customer reviews on Amazon
- 5 stars
77% 77% - 4 stars
13% 13% - 3 stars
3% 3% - 2 stars
2% 2% - 1 star
5% 5%
Only aggregate ratings are supplied, with most ratings in the five-star category but a smaller spread across lower categories. This suggests generally favourable overall scoring alongside some less positive experiences, but the ratings do not identify what customers liked or disliked. They cannot confirm the listed length, pack quantity or waterproof performance.
Frequently asked questions
How many lights are listed?
The listing specifies 120 LED light sources. Its title describes a two-pack, but the included-components entry does not confirm the number of strings.
What is the stated length?
The title states 12 m/40 ft. A feature instead describes 40 ft of lights plus a 3 ft lead, or 43 ft total, so the overall length is not consistent across the listing.
Can these lights be used outdoors?
The details field says indoor usage, while a feature claims IP65 waterproofing and outdoor use. Clarify the intended exposure limits before using them outside.
What powers the lights?
They are listed as corded electric and the feature says they connect to USB interfaces, mobile power supplies or computers. A suitable USB power source is needed.
