Flemoon Large Outdoor Electrical Box (12.5 x 8.5 x 5 inch), IP54 Waterproof Extension Cord Cover Weatherproof, Protect Outlet, Plug, Socket, Timer, Power Strip, Holiday Light Decoration, Black

Flemoon Large Outdoor Electrical Box (12.5 x 8.5 x 5 inch), IP54 Waterproof Extension Cord Cover Weatherproof, Protect Outlet, Plug, Socket, Timer, Power Strip, Holiday Light Decoration, Black

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Flemoon Large Outdoor Electrical Box (12.5 x 8.5 x 5 inch), IP54 Waterproof Extension Cord Cover Weatherproof, Protect Outlet, Plug, Socket, Timer, Power Strip, Holiday Light Decoration, Black
Price: $31.99 - $25.99
(as of Feb 19,2026 07:38:16 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 electrical box effective at waterproofing multi-plug connections and keeping cords dry, particularly for outdoor Christmas light setups. The product is solidly built, spacious enough for power strips, and works well for temporary use. While some customers report it holds up well in inclement weather, others mention issues with plastic hinges and clamps breaking.

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246 customers mention water resistance, 192 positive, 54 negative

Customers praise the electrical box's water resistance, noting it effectively keeps water out of outdoor outlets, protects multi-plug connections, and keeps cords dry.

…We've adapted a bungee cord so we could be able to close ir, it is waterproof and works great against any rain but the quality of it is not what we…Read more

…FIts it perfectly and is water tight! Just tested it out with Hurricane Beryl and he didn't have a chance!Read more

Very easy to access and insert all the electrical lines for secure, weather proof purposes.Read more

Flimsy latches. Not waterproof. No rubber seal. Box is worth about $5. I only kept this box because I hade a unique situation and application for it.Read more

233 customers mention works well, 221 positive, 12 negative

Customers find that the electrical box works well, particularly for temporary use and Christmas lights, with one customer noting its effectiveness even in 3 inches of snow.

I had no idea these things existed. This is awesome! Works great. Found a power strip that fits it well and couldn't be happier….Read more

Bought this for the plugs for inflatable yard decorations. It works well and have not had any issues with it so far….Read more

Worked great , but after several months in the sun, the box became warped , and now it does not close properlyRead more

Works as advertised. Put to the test right away in a big thunderstorm. Went out after the rain stopped and there was no water intrusion. Worth it!Read more

228 customers mention quality, 203 positive, 25 negative

Customers find the electrical box to be of excellent quality.

Great product, saved us from the storms. I opened the box after days being left on heavy rain and it was bone dry inside. Appreciated and recommended.Read more

…And the rubber cord seals seem to be well made. The issue is that this case does not include a gasket to seal the two halves when closed….Read more

Very sturdy horses have kicked it I don't know how many times and it's still fine cats like sitting on it and rain hasn't ever gotten in it keeping…Read more

…box amply protects against the elements, but is well built and of good quality, so I expect it will.Read more

133 customers mention sturdiness, 104 positive, 29 negative

Customers find the electrical box solidly built with heavy-duty cords and find its construction makes it very workable.

I wanted to love this box It really looks sturdy and well made but the clamps that are used to close it are really weak, the broke on the first…Read more

This appears to be solid and well made. We will see how it stands up to sun and rain.Read more

I am so happy, I may get another. It is strong and waterproof. I hung mine the first one on the wall and painted it white….Read more

A bit flimsy but seems to be water tight so it'll work!Read more

112 customers mention keeps things dry, 110 positive, 2 negative

Customers report that the electrical box effectively keeps outlets, cords, and connections dry, particularly for outdoor ceiling fans, with no issues with moisture or bugs.

…It fits a power strip and a power supply for my fish light. Keeps everything dry.Read more

Easy to use and keeps cords dry.Read more

…I opened the box after days being left on heavy rain and it was bone dry inside. Appreciated and recommended.Read more

…Has plenty of space for bulky hot cord and keeps it dryRead more

110 customers mention outdoor use, 109 positive, 1 negative

Customers find the electrical box perfect for outdoor use, particularly for holiday decorations and Christmas lights.

Perfect for Outside…Read more

Perfect for outdoor cords that you don’t want to get wet. I have a few throughout my yard and latest a long time….Read more

Perfect for outdoorRead more

…winter or pool pump connection in the summer, this is a must have for outdoor connections.Read more

99 customers mention size, 79 positive, 20 negative

Customers appreciate the size of the electrical box, finding it spacious and large enough to accommodate power strips and handle full-sized surge protectors.

Good size fit my over sized pool pump plug and extension cord with room for more haven't had any issues stays dry was exactly what I needed I would…Read more

…Spacious: It can accommodate large Belk surge protectors, smaller, longer ones, and even small square protectors with USB and 3-prong outlets….Read more

…It is a great size, but with the new led outdoor lighting you can get (such as the nets for bushes) the plugs for those are ridiculously long, so…Read more

This product is very large and I ended up returning it due to the size. It does appear that it would be a good all product and decently built….Read more

104 customers mention durability, 45 positive, 59 negative

Customers have mixed experiences with the electrical box's durability: while some report it holds up well in inclement weather and stands up to storms, others mention issues with plastic hinges and clamps breaking, and latches coming off easily.

…But less than a year after purchase, one of the latches broke and water got inside. Now I have to buy a replacement.Read more

…The box itself is well built and durable and I’ve dropped it a couple of times (oops) and it didn’t even sustain much scratches….Read more

Great idea but the lid became brittle after being outside. It cracked & broke rendering it useless. Lasted about 1 year….Read more

So far this product is holding up well, It’s in my garden and is exposed to my sprinkler system 3 times a week and it just works!…Read more


Nifty little box

5 out of 5 stars

Nifty little box
I’m writing this review after about two days of use, and so far it’s doing exactly what I needed it to do. This is a solid outdoor electrical box that helps organize and protect electronics from the elements. I purchased the large size specifically to house a surge protector and multiple low-voltage landscape lighting transformers, and everything fits comfortably with room to spare. I chose the larger size in case I need to add more equipment later, which I’m glad I did. One feature I really like is the rubber grommets around the cable openings. They allow cords to pass through while still providing protection, which should help keep out moisture, dirt, and insects. The box feels sturdy and well-made, and it gives me peace of mind knowing my outdoor electrical connections are better protected. If you’re looking for a simple and effective way to protect outdoor electrical components, especially for landscape lighting setups, this box does the job well. I would recommend it!
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Top reviews from the United States


  • dancingwithmyshadow

    5.0 out of 5 stars

    Voila! It works.

    Reviewed in the United States on November 26, 2025

    Color: BlackVerified Purchase

    This item solved my Christmas lighting problems! Last year I was constantly fiddling with the lights because the Seattle rain kept shorting the outlet, and the GFI would turn the lights off. So I used plastic bags to try to protect the connection points, but it never really worked.

    This year I tried the large black box, which is large enough to hold two separate timers and a large 3 pronged electrical cord ending. Fantastic! Lights have been on and off as set by the timer, and I'm staying inside, out of the rain. Yay. Yes, I recommend it if you have issues with wet weather. The box is well made, and easy to open and close when necessary.

    6 people found this helpful

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  • Michael

    5.0 out of 5 stars

    Sturdy and Waterproof Electrical Box!

    Reviewed in the United States on December 15, 2025

    Color: BlackVerified Purchase

    The Flemoon Large Outdoor Electrical Box is perfect for protecting my outdoor connections. The IP54 waterproof rating ensures it keeps moisture out, and the large 12.5 x 8.5 x 5-inch size provides plenty of space for wiring and extensions. It’s sturdy, easy to install, and ideal for outdoor use. Highly recommend for anyone needing a reliable protective enclosure!


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  • JB

    5.0 out of 5 stars

    great buy. It works.

    Reviewed in the United States on December 24, 2025

    Color: GreenVerified Purchase

    This item kept my outdoor wires dry during a rain storm.
    my christmas lights did not blow a fuse. This is a wonderful product. Thank you

    One person found this helpful

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  • Chris_Mijit on tiktok

    4.0 out of 5 stars

    does the job

    Reviewed in the United States on January 19, 2026

    Color: BlueVerified Purchase

    it gets dirty and moves easily, would be nice if it was a little more weighted at the bottom. but it has served its purpose of waterproofing my extension cable and EV charger. would recommend, looks same color as advertised. easy to use. its semi-translucent so the glow from my extension cable shines through a little bit, which i dont mind. doesnt seem durable since it is thin, would get destroyed if ran over or stepped on. overall, would buy it again. durable enough to withstand the elements and doesnt move around in wind or rain.


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  • Desgrom

    5.0 out of 5 stars

    Good but could be taller.

    Reviewed in the United States on January 3, 2026

    Color: GreenVerified Purchase

    Does the job its pretty big but it could be a bit taller because some of the outdoor decorations come with a tall plugs and if you use power strip you need to put the power strip on a side otherwise it will be too tall and box won't close, no problem with extensions cords with multiple outlets. Overall it does the job, no rain got in the box its pretty spacious and I am happy with the purchase.


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  • Elroy

    5.0 out of 5 stars

    Been out in the weather for over a year now!!

    Reviewed in the United States on January 3, 2026

    Color: BlackVerified Purchase

    I've got this box hanging outside on a post in the weather with the cords from 2 flood lights and a heavy duty extension cord inside. All I've got to say is haven't had any leaks or latches breaking off! I also have the smaller single boxes and they work wonders as well! So once you decide on a correct size these are easy to use and work wonders!


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  • FTC(SS) USN RET

    5.0 out of 5 stars

    Water proof

    Reviewed in the United States on February 15, 2026

    Color: RedVerified Purchase

    Very Good Product


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  • heather

    5.0 out of 5 stars

    perfect

    Reviewed in the United States on January 30, 2026

    Color: GrayVerified Purchase

    Daily use with outdoor fish tank. Absolutely perfect form and function even during heavy rain hurricanes.


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Top reviews from other countries

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  • Where?
    1.0 out of 5 stars

    Not waterproof

    Reviewed in Canada on November 2, 2024

    Color: BrownVerified Purchase

    I was excited to recieve the apparent waterproof
    Electrical box..but of course it's not waterproof at all.. completely useless. I give 0.. the whole concept is crap.



    Report





  • Jose A. Canales Mtz.
    5.0 out of 5 stars

    Excelente Producto

    Reviewed in Mexico on February 5, 2025

    Color: GrayVerified Purchase

    Excelente producto, cumple con todo lo que promete, no se le mete el agua. La relación precio/calidad es muy buena.



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  • Ryan
    5.0 out of 5 stars

    Very handy and well built!

    Reviewed in Canada on September 7, 2023

    Color: GrayVerified Purchase

    This box is really well built. The material used is durable and solid. It has multiple ports that allow cables to come in or go out of the box. Each port deals nicely around the cables. The latches are solid and well built, allowing for the kid to stay securely in place.

    Mine is used at my campsite and houses a powerbar which feeds lighting, a security camera and a fridge. Water is kept out and everything stays nicely protected. For added protection I keep it under my trailer to reduce the chance of any water leakage getting in… but the seals and overlapping top cover should keep everything dry and protected.



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  • Stephen T
    5.0 out of 5 stars

    Good water resistant box for keeping your project dry

    Reviewed in Canada on August 11, 2023

    Color: GrayVerified Purchase

    This box is used for my pump unit , I’ve managed to fit a 12V ( 15 A) battery, pump and control unit in it. ( control unit in a additionally box) The outlets at the side line up nicely with the hose inlets / outlets , it’s been out in a few rain showers and so far everything is bone dry . The rubber sealed outlets are a nice touch . I have installed it above ground as only rated IP 54 . Yes I would recommend for similar projects.



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  • AVSMAN
    5.0 out of 5 stars

    As advertised

    Reviewed in Canada on August 2, 2022

    Color: GrayVerified Purchase

    Used it to pass cabling out the back of our RV. Cell booster antenna cable and a couple of radio cables



    Report

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Brand in this category on Amazon

FLEMOON

Outdoor Electrical Box Waterproof

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FLEMOON

Flemoon Large Outdoor Electrical Box (12.5 x 8.5 x 5 inch), IP54 Waterproof Extension Cord Cover Weatherproof, Protect Outlet, Plug, Socket, Timer, Power Strip, Holiday Light Decoration, 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 Medium Outdoor Electrical Box (11.5x5.2x4 inch), IP54 Waterproof Extension Cord Cover w/6 Cable Entry Ports, Weatherproof Connection Box for Power Strip, Timer, Plug, Holiday Lights, Black

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Product Summary: Flemoon Large Outdoor Electrical Box (12.5 x 8.5 x 5 inch), IP54 Waterproof Extension Cord Cover Weatherproof, Protect Outlet, Plug, Socket, Timer, Power Strip, Holiday Light Decoration, Black

From Flemoon
Safety Certifications: Conforming to UL50, UL50E, and CSA C22.2 No. 94.1/94.2 Standards.
DIMENSIONS: External size is 12.5 x 8.5 x 5 inch. Inner size is 12 x 7.4 x 3.9 inch. 6*entry ports fit up to 12AWG/3C or Φ12mm cord.
READ BEFORE PURCHASE: Each package only includes 1*outdoor electrical box. The power strip, surge protector, outdoor timer, extension cord and all other device are not included.
Keep outdoor cord connection secure and protected. Great for keeping Christmas inflatable decor running while safeguarding its electrical safety. With the 4 clips, top lid, and rubber gaskets, this outdoor extension cord cover box is IP54 waterproof. Perfect to seal 12/14/16 gauge cord, braided cable and flat wire. Features with large space, good to protect your outdoor power strip, timer outlet plug, extension cord, large adapter.
Easy to use, place the connection into the safety seal enclosure and clip the cord with the clamps. Simple to hang the box on any walls with the dual mounting holes.
Ideal for a wide range of outdoor & indoor applications including wooden patio, lawn and garden power tools, Christmas holiday lighting, landscape decorations, pool pumps, fountains, fish ponds, patio heaters, hot tub, air conditioners, security cameras and more.
Waterproof Tips: Do not place more than one cable in each port; Place the electrical box parallel to the ground, but do not place it vertically or obliquely; Do not submerge the box in water or bury it.

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