Flemoon [3 Pack] Outdoor Extension Cord Safety Cover with Waterproof Seal, Weatherproof Electrical Connection Box to Protect Outdoor Outlet, Plug, Socket, Christmas Holiday Decoration Light, Black

Flemoon [3 Pack] Outdoor Extension Cord Safety Cover with Waterproof Seal, Weatherproof Electrical Connection Box to Protect Outdoor Outlet, Plug, Socket, Christmas Holiday Decoration Light, Black

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Flemoon [3 Pack] Outdoor Extension Cord Safety Cover with Waterproof Seal, Weatherproof Electrical Connection Box to Protect Outdoor Outlet, Plug, Socket, Christmas Holiday Decoration Light, Black
Price: $18.99 - $17.99
(as of Feb 19,2026 03:30:22 UTC – Details)

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To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.Learn more how customers reviews work on Amazon






Customers say

Customers find the extension cord cover works well, particularly during rainstorms, and appreciate its quality and value for money. The product provides excellent protection for outdoor plugs and is easy to use. The build quality receives mixed feedback – while some find it solid, others report that the plastic tabs break easily. Water resistance is also mixed, with some saying it keeps connections waterproof while others report water getting inside.

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266 customers mention works well, 251 positive, 15 negative

Customers find that the electrical housing works well, particularly with regular plugs and extension cords, and one customer specifically mentions it works great with their electric smoker.

…the Flemoon Outdoor Extension Cord Safety Cover was just the thing, works great, I do have it elevated off the ground on some stones around the base…Read more

This design is good and works well. It kept my big cord connected to the skinnier cord and sealed it just fine.Read more

Worked great. Has been outside covered by snow and ice for the past week and is completely dry on the inside!…Read more

works as expected, now I have to see how they performRead more

236 customers mention quality, 184 positive, 52 negative

Customers find the extension cord cover to be of good quality, describing it as a great little device.

This is a great product if you are plugging in a basic cord to cord. Anything to wide on the end won’t work with this particular product….Read more

Overall a good product. Can be a little annoying when trying to close the case because the tabs Can get in the way….Read more

…last but a year, but these are such a pleasant surprise as to how well made they are and they are completely waterproof. Highly recommend!Read more

Poor quality, very small, clips break easily. Returned after I attempted to use the first one, didn’t bother taking the rest out of the package.Read more

101 customers mention electrical protection, 97 positive, 4 negative

Customers appreciate the product's effectiveness in protecting outdoor electrical connections, particularly for plugs and camera connections, with one customer noting its multiple layers of weatherproofing.

Good protection…Read more

…A must-have for anyone looking to protect their outdoor electrical connections from weather exposure. Highly recommend!Read more

Easy to use and keeps connections protectedRead more

Seems to protect connections adequately.Read more

99 customers mention value for money, 75 positive, 24 negative

Customers find the extension cord covers to be good value for money, exceeding their expectations for quality at this price point, with one customer noting it's an affordable way to protect outdoor electrical connections.

…which is nice, particularly for the price, that was a surprisingly good value….Read more

Very durable cord protection and a great value…..fit wellRead more

Excellent product. Great price with fast shippingRead more

…really just the lack of vertical space that makes this product a waste of money.Read more

91 customers mention ease of use, 87 positive, 4 negative

Customers find the extension cord cover easy to use, with one mentioning it works particularly well with standard plugs and another noting it makes outdoor Christmas light installation simpler.

Easy to use, only wish would be that when you remove grommet on ends that, it would have some type of rubber piece to help seal 100% around the cord…Read more

Very easy to use. So far it has been holding up great to the elements!!!Read more

Excellent product. Simple to use and protects cords and feel much safer on hard if rains suddenly etc, have the junction more protected….Read more

…A simple, reliable solution for weather‑proofing cable connectionsRead more

229 customers mention water resistance, 160 positive, 69 negative

Customers have mixed experiences with the extension cord cover's water resistance: while some report it keeps connections waterproof and works well at preventing moisture, others mention that water gets inside the unit and that it's not truly waterproof.

These work so well and our waterproof but fit a very small cord. Nothing with a Y involved has to be straight extension, but work really well….Read more

These are nice and weatherproof. Only problem is they are NARROW. So you can only for a single end to end extension corr connection….Read more

This product is not waterproof. Two of the four clips broke off first thing. Not a good value even if they were free. Certainly cannot recommend.Read more

I use these on our farm for our stock tank heaters. Great, water proof, very sturdy plastic. Closes tightly, keeps the cords from being yanked apart….Read more

159 customers mention build quality, 63 positive, 96 negative

Customers have mixed opinions about the build quality of the extension cord covers, with some finding them sturdily made while others report issues with broken plastic tabs and capsule clips.

…It's also extremely cheap/flimsy. The cover felt like it was going to break when I was just inserting the cords….Read more

…I am super impressed by how sturdy this product is and it is super easy to use. I love their choice of colors and is completely weatherproof….Read more

Tabs break offRead more

Love this but the tabs break easily, making it a waste of money.Read more

131 customers mention difficulty to open, 65 positive, 66 negative

Customers have mixed experiences with opening the electrical housing: while some find the clasp fastens and locks well, others report that the closures are hard to open and close, and the tabs can only be snapped open.

…It was difficult to close and didn't accommodate extensión cords with hanging nobs on the plugs. A total dessapoint. Won't buy again.Read more

…These boxes keep connections dry and secure. Made a bush trimming project using 2 100ft extension cords and a electric pole saw so much easier….Read more

hard to close once cord is inside of the coverRead more

These fit on my bulky extension cords that are outside. They are very secure with 5 clips and water tight….Read more


Fits my sonoff switch for weather protection

5 out of 5 stars

Fits my sonoff switch for weather protection
Had a similar box installed on my old patio lights. It held up to several years of use without issue before we sold the house. I now have this installed on one of my sonoff switches installed outside for a Christmas decoration on our porch. I expect this to protect the sonoff switch and there’s plenty of room to spare.
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Top reviews from the United States


  • Lynda

    5.0 out of 5 stars

    Good product

    Reviewed in the United States on January 23, 2026

    Color: BlackSize: 3 PackVerified Purchase

    These work great to protect your plugs for outdoor lights! They lock closed and seals well, easy to use and very sturdy.


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  • Deana Looney

    5.0 out of 5 stars

    These worked out perfectly!

    Reviewed in the United States on January 15, 2026

    Color: BlackSize: 3 PackVerified Purchase

    The Flemoon outdoor extension cord safety covers are sturdy, easy to use, and truly weatherproof. The waterproof seal keeps connections dry and protected from rain and moisture, which gives me total peace of mind for outdoor lights and equipment. Great quality for the price, and having a 3-pack is super convenient. I’m very happy with this purchase and would definitely recommend them!


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  • ChrisWNY

    4.0 out of 5 stars

    Excellent for waterproofing electrical connections in the snow, but small tabs break easily

    Reviewed in the United States on January 25, 2025

    Color: BlackSize: 3 PackVerified Purchase

    Purchased these to waterproof electrical connections for heated chicken and bunny waterers used over the Winter months. Prior to using these safety covers, I was having problems with snow and water getting to the plugs and causing GFI outlets to trip. This would cut the power to the heated waterers and subject the water to freeze in subzero temps, endangering the animals relying on the water heaters for hydration. These safety covers are extremely easy to use…just center the electrical plugs inside the compartment, press the cords into the crimps, and snap shut. The only real drawback is the small plastic latches on the outside break off very easily, with minimal effort. That being said, the safety covers still work fine if one of the plastic latches break. You can throw these onto the ground and let snow pile up over them and never worry about your plugs getting wet/corroded or tripping a GFI outlet.

    Overall, these safety covers work well for keeping water off of 2 or 3-prong plugs used on extension cords. If you want to double the protection, coat the male and female plugs with Corrosion-X and you'll never have water problems or electrical shorts that can trip off a GFI outlet. Docked a star because the small plastic latches on the outside break too easily.

    6 people found this helpful

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  • Kevin M. Dougherty

    5.0 out of 5 stars

    Great for the Long Term!

    Reviewed in the United States on January 14, 2026

    Color: BlackSize: 3 PackVerified Purchase

    My wife has a lot of projects in our backyard and they require a long-term extension cord usage. These cords are left outside for long periods of time in all sorts of weather. Because of that I’ve made sure to buy things and products like this to protect the connection between the extension cords. Products like these add to the longevity of the expensive extension cords that I buy for my wife.

    These are of a decent quality and they look halfway decent. So far these particular ones are pretty waterproof and weatherproof. They provide great electrical connection protection.


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  • MS

    5.0 out of 5 stars

    waterproof and snow proof

    Reviewed in the United States on February 12, 2026

    Color: GreenSize: 3 PackVerified Purchase

    these are amazing! We’ve had torrential rains and a foot of snow in the northeast and they had no effect on our outdoor Christmas light setup. Absolutely waterproof and even held up in subzero temperatures with snow covering them. Would buy them again in a heartbeat


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  • Jacob

    5.0 out of 5 stars

    Great product, worked great.

    Reviewed in the United States on January 3, 2026

    Color: BlackSize: 9 PackVerified Purchase

    They do exactly what they say they will. I have used some of the Flemoon bigger electrical boxes and wanted to try these out since the others are very good. They worked great, no water intrusion at all. In the past used some local hardware store versions and they let all sorts of moisture in causing problems. These did not, great product, definitely recommend.


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  • JB

    5.0 out of 5 stars

    Kept the lights on..

    Reviewed in the United States on December 24, 2025

    Color: GreenSize: 3 PackVerified Purchase

    It works great. We had a storm come through days after I bought the item. With all the rain, the Extension Cord Safety Cover kept the wires dry and the outdoors Christmas lights on. Great product.


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  • EbOmB

    5.0 out of 5 stars

    Great for rain and snow!!!

    Reviewed in the United States on December 11, 2025

    Color: BlackSize: 3 PackVerified Purchase

    The Flemoon Outdoor Extension Cord Safety Cover (3 Pack) is a practical solution for anyone looking to protect their outdoor electrical connections from the elements. Whether you’re using extension cords for garden tools, holiday decorations, or any outdoor electrical setup, these covers offer peace of mind with their waterproof seal and weatherproof design.Each box securely encases outlets, plugs, and sockets, effectively safeguarding them from rain, snow, dirt, and dust. The sturdy black construction is not only durable but also discreet, blending well with most outdoor environments. Installation is straightforward, making it easy to keep your outdoor connections safe without hassle.What stands out about these covers is their versatility—ideal for use during Christmas when decorating with lights, or any time you want to maintain safe outdoor electrical setups. Overall, the Flemoon safety covers combine functionality, durability, and ease of use, making them a smart choice for protecting outdoor electrical connections year-round.
    If you're tired of worrying about weather damage or short circuits outside, these covers are definitely worth considering for a safer setup.


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Top reviews from other countries

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  • Ronald
    5.0 out of 5 stars

    Bueno

    Reviewed in Mexico on December 16, 2025

    Color: BlackSize: 3 PackVerified Purchase

    Bueno



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  • Amazon カスタマー
    5.0 out of 5 stars

    最高でした。

    Reviewed in Japan on January 8, 2023

    Color: BlackSize: 3 PackVerified Purchase

    イメージ通りの商品で大満足です。
    有難うございます。



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Product Summary: Flemoon [3 Pack] Outdoor Extension Cord Safety Cover with Waterproof Seal, Weatherproof Electrical Connection Box to Protect Outdoor Outlet, Plug, Socket, Christmas Holiday Decoration Light, Black

From Flemoon
Safety Certifications: Conforming to UL50, UL50E, and CSA C22.2 No. 94.1/94.2 Standards.
DIMENSIONS: External size for this extension cord cover is 2.3″ x 2.3″ x 7.1″ and its inner size is 2.0″ x 2.0″ x 5.3″. The diameter of entry port is 10mm that perfect to seal 14/16/18 gauge cord, braided cable and flat wire. Designed to keep cord connection secure and protected. Great for keeping Christmas inflatable decor running while safeguarding its electrical safety.
Compact size and light weight are great to protect outlet/plug/socket/connection hanging in the air. With the 4 corner clips, snap-lock lid, and rubber gaskets, this outdoor extension cord cover box is IPX4 waterproof.
Made with heavy-duty reinforced PP material to withstand rain, snow, water, dust, dirt and more, continuously protecting outdoor connections from electrical hazard.
Easy to use, place the connection into the safety seal enclosure and clip the cord with the clamps. To hang the cover, use the included cable ties and insert them to the side mounting holes.
Ideal for a wide range of outdoor & indoor applications including lawn and garden power tools, Christmas holiday lighting, landscape decorations, pool pumps, fountains, fish ponds, patio heaters, air conditioners, security cameras and more.
Note: This extension cord box cannot fit for power strip, right-angle plug and large adapter.

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