






Price: $19.75 - $15.99
(as of Oct 30, 2025 17:33:16 UTC – Details)
Product Description

Btfarm Upgraded Solar String Lights Outdoor
Solar copper fairy lights come with 8 modes, waterproof, auto on/off, memory function, glows with 2700K warm white light in the dark/evening and creates a romantic, magical, elegant, and fun environment. Decorate for bedroom, patio, Christmas, trees, lawn, wedding, garden, party, New Year, holiday, etc.


New Upgraded Solar Panel-Improved Charging Efficiency
The larger size of the new solar panel – 6CM*7.5CM – allows for a larger surface area for capturing sunlight, thus improving charging efficiency. This means that the device can be charged faster and the life of the solar string lights outdoor garden can be extended.

Waterproof Design
The solar string lights and solar panels are waterproof, which makes it able to withstand all kinds of bad weather, such as rain, snow, wind and frost, high temperature, etc.

Safe to Touch & Easy to DIY
The outdoor fairy lights waterproof are made of soft and durable copper wire that can be bent and folded into any shape you like. The lamp bead is safe voltage and can be safely touched.

2 In 1 Install Ways
Equipped with high-quality monocrystalline silicon solar panels, the solar energy conversion efficiency is up to 22%. There are 2 ways to place solar panels, wall mounting or ground inserting, so you can choose either installation method without environment restriction.
Multi-scene Decoration


Q:1. Why solar string lights are not light up?
A: The solar tree lights should tear the film of the solar panel before first use, then turn on the switch and fully charge in direct sunlight for at least 8 hours.
Q: 2. Why does the Memory Function fail and the last pattern is not saved?
If you press the on/off button again, the mode will be reset and the memory function won’t be able to save the last mode you used. So if you want to save the mode, you can’t press the on/off button again.
Q: 3. Why has the solar string light been charged for several hours, and the lighting time is still short?
A: The solar panel should be placed in a place without shade to get maximum sunlight during daylight. The charging and working time are affected by the weather, climate, season and sun intensity, etc.
Q: 4. How to choose the installation location of solar panels?
A: Solar panels should be installed in a place where there is no shelter and no other light source, to ensure that the sunlight can be direct, and can normally absorb sunlight into electricity.
Q: 5.What should I do if I encounter a problem during use?
A: Btfarm is committed to providing good service to every customer, we offer 1 year return for quality issues and 24 hours friendly service and other After-sales service. Please come to us.
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Customer Reviews
4.4 out of 5 stars 32
4.6 out of 5 stars 40
4.3 out of 5 stars 433
4.1 out of 5 stars 1,591
4.4 out of 5 stars 739
Power Supply
Plug in Plug in Battery Powered Battery Powered Solar Powered
Special Function
Timer, Dimmable, 8Modes Timer, Dimmable, 11Modes waterproof 3 Modes Steady on
LED Quantity
200 LED 300 LED 16×20 LED 12×20 LED 8 LED
Length
82FT 115FT 7FT 7FT 10 Pack
Parcel Dimensions : 20.7 x 18.7 x 2 cm; 260 g
Date First Available : Dec 23 2022
Manufacturer : Btfarm
ASIN : B0BQYXXSW6
Item model number : SL21
Best Sellers Rank: #176 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #5 in Outdoor Light Strings
Customer Reviews: 4.2 4.2 out of 5 stars 6,239 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
2 Pack Solar Fairy Lights Outdoor Each 150LED 55FT: Package includes 2 pack solar copper string lights, total 300LED 110FT, emitting a warm light. Solar string light is upgraded to 49 ft light string +6 ft lead wire and 150 LED. Enough length and lights to increase the decorative range, to meet your different decorative needs
New Upgraded Solar Panel: The larger size of the new solar panel translates to a greater surface area for capturing sunlight, resulting in increased charging efficiency. This means that the device can charge faster and potentially extend its usage time. Working up to 8-14 hours after 6-8 hours fully charged in direct sunlight. (Note: charging and working time depend on the weather). Please press the ON/OFF button before charging
8 Modes and Memory Function: There are On/Off button and mode button on the back of the solar panel. 8 Modes setting: combination, in waves, sequential, slow glow, chasing, slow fade, flash, steady on. Built-in memory function will save your last mode settings, no need to reset again every day
Waterproof and Easy to Install: The solar string lights outdoor and solar panel are waterproof, it can be used on the rain and snow day. Installation is simple and hassle-free, just follow the instructions. Suitable for outdoor, patio, yard, garden, wedding, tree, lawn, trees, party decor and so on
Widely Used for Your House: btfarm Outdoor led fairy lights like stars, creating a cheerful mysterious decorative effect, suitable for various occasions and seasons. Perfect Decoration for yard, wedding, xmas, holiday, bush ornament and so on, bringing the finishing touch to the backyard
Customers say
Customers like the lighting quality, appearance, and modes of the string lights. They mention they’re very nice, pretty, and bright. Customers also like the twinkling setting. However, some customers disagree on the reliability, durability, and installation. Opinions are mixed on the size.