LuSumtly Waterproof Junction Box, ABS Plastic Electrical Box with Stainless Steel Latch, Hinged Cover Electric Project Enclosure Box with Mounting Plate, Wall Brackets & Cable Gland 8.7"x6.7"x4.3"

Why I chose this enclosure

I needed a compact, weatherproof home for a small outdoor control project: a step-down power supply, a Wi‑Fi relay module, a fuse holder, and a couple of terminal blocks for irrigation valves. The LuSumtly junction box hit the right size and feature set on paper—hinged, clear lid, stainless latches, an internal mounting plate, external wall brackets, and included cable glands—so I put it to work on an exterior wall where it would see sun, rain, and occasional sprinkler overspray.

Build quality and weather protection

Out of the box, the enclosure feels solid for ABS. The walls are thick enough not to flex under hand pressure, and the hinge moves smoothly without wobble. The stainless latches snap closed with a satisfying, even tension on both sides, compressing a continuous perimeter gasket around the lid. That gasket is the heart of any outdoor box; on this one it’s neatly seated, consistent in thickness, and doesn’t snag or twist when you close the door.

The clear cover is a practical touch. Being able to glance at status LEDs without opening the enclosure saves guesswork (and keeps the rubber gasket from being exercised more than necessary). I was initially concerned the clear lid might be more brittle than opaque plastic, but it shrugged off mounting, drilling, and routine handling without scuffs or stress marks.

As for water resistance, I won’t claim a lab-grade submersion test, but I did the usual hose-and-nozzle shakedown with the spray coming from different angles for several minutes, followed by a week of late-summer storms. No moisture inside, no sweating on the interior lid surface, and no water attempting to creep through the hinge. The IP67 claim aligns with how it behaves in the field—very confidence-inspiring for outdoor duty.

A small tip: mount it so the hinge is at the top if your layout allows. Gravity will help the lid shed water when you’re servicing it in the rain, and any stray droplets are less likely to fall into the enclosure while it’s open.

Installation and layout

The included external wall brackets are the unsung heroes. Because you mount the box via these brackets, you don’t have to pierce the rear of the enclosure, which preserves the seal. The fasteners are stainless and seated cleanly. Layout is straightforward: the internal mounting plate gives you a flat surface to attach components without drilling into the back of the box.

That plate is sturdy enough for small power supplies, relays, routing blocks, and a short length of DIN rail if you want to tidy things up. I used short machine screws with nylon locknuts for anything with weight and self-tapping screws for lightweight parts. There’s adequate depth to keep low-voltage wiring clear of the lid and gasket. If you’re trying to fit beefy AC plug bricks, measure carefully; at 4.3 inches deep overall, you don’t have endless space after accounting for the plate and wiring bend radiuses.

Cable entry is solved out of the gate with two included glands. They install easily and seal well around typical low-voltage jacketed cable. If your project needs more penetrations or larger diameters, plan on adding extra glands or a bulkhead fitting. As always, bring cables in from the bottom where possible and put a drip loop on each run.

Working with ABS: drilling and customizing

ABS is forgiving to cut and drill, and that’s true here. I used a step bit at low speed with light pressure to open a pair of holes for the cable glands; the edges came out clean and round with no cracking or feathering. A deburring tool or a quick touch with a utility knife cleans the lip perfectly. The flat sides of the box are generous enough to support a few more connectors without crowding.

If you think you’ll adjust or expand the build later, leave a bit of space around your components on the mounting plate for future tie-ins. I also pre-labeled terminal blocks and tucked a wiring diagram in a clear sleeve inside the lid; the clear cover makes that reference easy to read without opening the box.

Real-world performance outdoors

With the enclosure mounted on a west-facing stucco wall, it’s been exposed to direct sun in the afternoon and chilly nights. The material hasn’t chalked or taken on a brittle feel. The latches still pull evenly after multiple open-close cycles. The clear lid hasn’t fogged or yellowed in early use.

Thermally, a sealed box can trap heat; the clear cover means you’ll absorb a bit more solar gain than with an opaque gray lid. In my irrigation control application—low power electronics drawing under an amp—internal temperatures remained reasonable. For higher-wattage equipment, consider adding a breathable membrane vent or sizing up to increase air volume.

Moisture is the other invisible enemy. Even in a sealed enclosure, humidity swings can create condensation. Desiccant packs or a small waterproof breather vent are smart additions for environments with big day-night temperature deltas.

Everyday usability

The hinge makes maintenance much nicer than lift-off or screw-on lids. I can swing it open, probe a terminal, and close up without juggling a panel. The latches are glove-friendly and don’t pinch the gasket. The clear cover lets me confirm power and network activity at a glance.

Small touches add up:
- The internal plate aligns well and doesn’t rattle.
- The exterior finish is smooth enough to apply labels.
- Corners and edges are deburred—no sharp flash to catch on cable jackets.

Limitations and gotchas

• Security and privacy: A clear lid is great for diagnostics but not for discretion. If your enclosure houses attractive gear or reveals a network topology, consider an opaque alternative or apply a light-blocking film on the inside of the window.
• Included hardware quantity: The kit gets you started (mounting plate, brackets, glands), but most real projects will need extra glands, grommets, and more fasteners. Plan your bill of materials accordingly.
• Regulatory context: This is an IP-rated ABS enclosure. If you’re installing in a jurisdiction that requires specific listings (e.g., certain UL/NEMA ratings for mains-voltage equipment), verify compatibility with your local code and inspector. For low-voltage controls, sensors, and networking gear, it’s an easy fit.
• Depth constraints: The 4.3-inch depth is generous for low-voltage and slim power supplies, but oversized adapters or deep relays may feel cramped. Measure before you commit.

Sizing and use cases

At 8.7 x 6.7 x 4.3 inches, this enclosure suits:
- Garden and irrigation controllers with small power supplies and a few relays
- Solar charge monitor nodes, small DC distribution, sensor hubs
- Outdoor antenna combiners or POE midspans with room for surge protection
- Router or gateway enclosures where you want LED visibility and quick access

If you anticipate growth, there are larger sizes in this family with the same construction. I prefer to choose the smallest size that leaves 25–30% free space for better cable routing and future additions.

Tips for a cleaner install

• Use a step bit and mask the drilling area with painter’s tape to prevent wandering.
• Orient glands downward and leave drip loops; water follows gravity.
• Add adhesive-backed standoffs or a short DIN rail to keep wiring tidy.
• Label everything and tuck a small laminated schematic inside the lid.
• Throw a pair of silica gel packs in the corner to buffer humidity.

Value and who it’s for

For the feature set—hinge, stainless latches, clear cover, mounting plate, external brackets, and glands—the box represents strong value. It sits in the sweet spot where DIYers get an approachable, mod-friendly enclosure and pros get dependable weather protection without overpaying for industrial hardware on small jobs.

If you need a rugged, no-fuss home for low-voltage controls, sensors, and small power distribution outdoors, it’s a sensible choice. If you’re dealing with high-wattage heat sources, require opaque security, or must meet a specific listing for inspection, you’ll either accessorize (vent, film) or look to a different enclosure category.

Recommendation

I recommend the LuSumtly junction box for low-voltage and light-duty mains-adjacent outdoor projects that benefit from quick access and visibility. Its combination of a reliable gasketed seal, stainless latching, a hinged clear lid, and an internal mounting plate makes installation straightforward and maintenance easy. The external brackets preserve the enclosure’s integrity, the ABS body drills cleanly, and the included glands get you operational without a last-minute trip for parts.

Just size your components carefully, plan for moisture management if your climate swings, and consider privacy if a clear lid isn’t ideal for your application. With those notes in mind, this enclosure has the right balance of durability, usability, and value for most residential and small commercial projects.