Vehjunc 120LED Underwater Boat Lights Review: bright budget transom lights that do the job

I put these Vehjunc 120LED underwater boat lights on the transom of a small center console that I use for evening fishing and a couple of night cruises. I’m not an electrician, just a regular boat owner with basic tools, so I went into this expecting a bit of hassle and “you get what you pay for” quality. In practice, they were simpler to deal with than I thought, and the light output is honestly the main strong point here.

The first night I used them, we were anchored up for some inshore fishing. Water was maybe 6–8 feet deep, slightly murky. When I flipped these on, the blue glow spread a good couple of meters behind the boat. It’s not like daylight, but for the size and price, the visibility bump is pretty solid. You can clearly see your line and what’s happening close to the transom, which is what I care about most.

They’re 12V (they say DC 10–30V) and wired straight into my existing accessory switch panel. No fancy controller, no RGB gimmicks, just on/off blue light. For me, that’s actually a plus. Less to break, and if you already have a basic fuse panel, it’s literally just power and ground. There’s no polarity, which makes life easier if you’re not super confident with wiring.

They’re not perfect. The specs they claim (like 6000 lumens from 0.5W x 120 LEDs) feel optimistic at best, and the instructions are pretty bare. But for a low-cost pair of stainless surface-mount transom lights that actually light up the water and haven’t leaked so far, they’re decent. If you want premium finish and brand support, this isn’t that. If you want simple bright blue glow on a budget, they get the job done.

In terms of value, these sit in a pretty sweet spot if you compare them to big-name marine brands. A pair of premium underwater lights can easily cost several times more than this set. With these, you’re paying a fraction of that, and you still get stainless housings, bright output, and a decent-looking install. So for someone who just wants their boat to light up at night without draining the wallet, they make sense.

Where you notice the price is in the small details: basic packaging, minimal instructions, no installation extras like gaskets or junction boxes, and specs that are a bit “optimistic.” If you’re picky about perfectly documented lumens, full wiring diagrams, and brand reputation, you probably won’t be thrilled. But if you’re okay with “it’s bright, it works, and it’s cheap,” then the trade-off is acceptable.

Compared to other random Amazon underwater lights I’ve seen and used, these feel a bit better built than the absolute bottom-of-the-barrel stuff. The 316 stainless trim is a plus, and the IP68 sealing seems legit so far. The Amazon rating (4.9/5 from a handful of reviews) is nice, but I wouldn’t base everything on that alone. My own take is: they deliver what most people in this price range are actually looking for—blue glow, easy install, and basic reliability.

If you run a big yacht and care about brand-matching hardware and long warranties, I’d say spend more and go with a known marine brand. If you’ve got a pontoon, small fishing boat, Jon boat, or modest cruiser and just want some underwater light for night fishing or hanging at the sandbar, these are good value. Not perfect, but for the money, it’s hard to complain too much.

Design-wise, these are pretty straightforward: a rectangular stainless face with a central lens section where the LEDs sit. No logo plastered across the front, no colored trim, nothing fancy. I actually like that. On the transom, they blend in fairly well and don’t scream “budget light” from a distance. The finish is reasonably smooth, and I didn’t find any sharp edges or obvious defects around the screw holes.

The low-profile design is handy. When you mount them, they don’t stick out too far, so you’re less likely to kick them getting in and out of the boat or catch a line on them. The corners are softly rounded, which helps too. On my hull, two of them spaced evenly across the transom look balanced. They don’t dominate the back of the boat, but when you turn them on, they do stand out in the water.

One detail I noticed: there’s no dedicated rubber gasket or foam pad on the back of the light. It’s just the stainless housing and the PC lens bonded together. That means you really need to rely on sealant around the screw holes and the wire exit if you want to keep water out of your hull. The light itself is sealed (IP68 claimed), but the design doesn’t solve hull sealing for you. That’s on you and your tube of marine sealant.

Overall, I’d call the design functional and clean. No unnecessary features, no built-in controller box, no RGB. Just two wires and a solid-looking stainless plate. If you like minimal hardware that doesn’t make your boat look like a Christmas tree, this style works. If you want something more polished with branded bezels or contour shapes to match specific hulls, you’ll probably find these a bit plain, but they don’t look tacky.

The brand advertises a SUS316 stainless steel shell and a pure PC (polycarbonate) inner shell, plus a special waterproof glue rated for 20 m depth. On paper, that’s exactly what you want for saltwater: 316 handles corrosion better than 304, and PC is tough enough to deal with the occasional bump or flying sinker. In hand, the materials feel solid enough, especially for this price range.

The stainless trim has a consistent finish. I didn’t see any discoloration, weird welds, or pitting out of the box. After a few uses in saltwater followed by quick freshwater rinses, I haven’t seen rust or staining yet. Obviously, long-term corrosion is a different story, but at least in the first weeks, nothing alarming. If you leave your boat in the water full-time and never rinse it, any stainless will eventually show something, but 316 is definitely better than cheaper grades.

The PC lens feels sturdy. I pressed on it and gave it a couple of taps with a screwdriver handle, and it didn’t flex or feel flimsy. It’s not bulletproof, so if you slam it with a heavy object, you’ll damage it, but for normal use—water pressure, small knocks, maybe a lure bouncing against it—it should be fine. The seal between the lens and the housing looks clean, with no obvious gaps or bubbles in the adhesive.

The wiring is basic: a two-conductor cable with no polarity, which is nice for simplicity. The insulation feels okay, not super thick, but not paper-thin either. I’d still protect the connections with heat shrink and maybe a dab of dielectric grease, because the supplied setup isn’t marine-grade tinned wire with fancy sheathing. In short, materials are decent for the price: real stainless trim, tough plastic lens, and a sealed body. Not premium yacht hardware, but not junk either.

I haven’t had these for years, obviously, so I can’t pretend to know the full long-term story. But after several outings in saltwater, including leaving the boat in overnight, they’re holding up fine. No water intrusion, no fogging inside the lens, and the stainless trim still looks good after a rinse. That’s already better than some cheap lights I’ve tried before that started fogging within a week.

The IP68 rating and the “20m depth waterproof” claim are probably a bit optimistic for real-world abuse, but for a transom light that spends its life just under or just above the surface when underway, it seems adequate. I’ve run them at speed, taken some wake slaps on the stern, and nothing has cracked or come loose. The lens hasn’t scratched badly yet, though I’m not babying it.

What will really matter long-term is corrosion around the mounting screws and how well your sealant job holds up. The supplied screws are stainless, but I’d still keep an eye on them each season. Also, check the wire exit point now and then. If the insulation starts to crack or harden from UV, that’s where problems begin. So far, the cable still feels flexible and intact.

The brand claims a 2-year guarantee with free exchange or refund if there’s a problem. I haven’t had to test that, so I can’t comment on how responsive they are, but at least it’s there on paper. Overall, early durability looks promising for a budget light, but I’d still treat them as mid-range gear: rinse after saltwater use, inspect once in a while, and don’t expect them to last forever if the boat lives outside all year.

Performance is where these lights actually surprised me a bit. The listing claims 120 LEDs per light, 0.5W each, and a total of 6000 lumens. The numbers don’t really add up, but ignoring the marketing math, in real use the lights are genuinely bright. Mounted on the transom about 20–25 cm above the waterline, they throw a strong blue pool a couple of meters back and down in 6–8 feet of water.

For night fishing, that’s enough to see baitfish flickering in the glow and track your lines right behind the boat. I wouldn’t use them as replacement for proper navigation or deck lights, but that’s not what they’re for. As underwater accent/fishing lights, they do the job well. The beam is fairly wide, not a tight spotlight, so you get a decent spread rather than one super bright dot.

In slightly murky water, the blue color still cuts through okay, but you lose some range compared to clear water, which is expected. From the dock, the boat is easy to spot, and the lights give a nice clear outline around the stern. They also help a bit when you’re loading gear or swimmers at night, just by lighting up the area around the ladder.

Heat-wise, they stay cool enough. After running them for over an hour, the housing was only mildly warm to the touch above the waterline, nothing worrying. No flickering, no random shutoffs so far. I ran both lights on a 12V system, and the current draw seems low enough that they don’t stress the battery noticeably during a normal evening out. In short, performance is solid: bright enough for small to medium boats, stable operation, and no drama so far.

Installing these is pretty straightforward, but you do need to be comfortable drilling into your hull and doing basic 12V wiring. The lights are surface-mount with four stainless screws each. I marked the positions, drilled small pilot holes, and then widened them slightly where needed. There’s no template included, so I just used the light body itself as a guide. It’s not complicated, but you want to take your time to line them up evenly on the transom.

For sealing, I strongly recommend using a good marine sealant around each screw hole and where the cable passes through. The lights themselves are sealed (IP68 claim), but that doesn’t stop water from getting into your transom if you just dry-mount them. I ran the cable through a small hole above the waterline, filled the gap with sealant, and then tightened the screws just enough to compress everything without squeezing all the sealant out.

Wiring is simple: two wires per light, no polarity. I tied them into an existing accessory circuit with an inline fuse and a rocker switch. If you don’t already have a free circuit, you might need to add a switch or use a spare. They say DC 10–30V, but most people will run them on 12V. I used crimp connectors with heat shrink and wrapped the bundle in loom to keep things tidy and protected.

Overall, installation is easy for a DIYer with basic tools, but not truly plug-and-play. There’s no wiring diagram beyond “two wires,” and the instructions are minimal. If you’ve never wired anything on a boat before, you might want to watch a couple of videos first or have someone experienced help you the first time. Once mounted, they feel secure and don’t wobble, as long as you drilled properly and didn’t overtighten the screws.

Out of the box, it’s a pretty straightforward kit: two rectangular stainless steel lights, each pre-wired with a two-core cable, plus a small bag of stainless screws. No extra gaskets, no junction box, no fancy packaging. The listing says “nothing included” but in reality you do at least get the mounting screws. Just don’t expect foam inserts and full-color manuals; it’s basic cardboard and plastic wrapping.

The lights themselves look decent. The stainless trim is shiny, and the lens is clear PC plastic that feels fairly solid when you press on it. They’re not massive; more in the compact category, which is good if you’re working with a small transom or you don’t want your boat to look like a disco. The style is quoted as “modern” but honestly they’re just simple rectangular lights with a blue LED cluster inside.

On the spec sheet they throw a lot of numbers around: 120 LEDs per light, 0.5W per LED, supposedly up to 6000 lumens, IP68 waterproof, 316 stainless shell, and a claimed 50,000-hour LED lifespan. In practice, I take those numbers with a grain of salt. They’re bright, yes, but 6000 lumens from a tiny surface-mount light on a 12V line seems pretty optimistic. Still, for night fishing and making your boat stand out at the dock, they’re more than bright enough.

One thing to keep in mind: there’s no switch, fuse, or wiring hardware included. You’ll need your own: crimp connectors, heat shrink, maybe a fuse tap or a dedicated breaker, and some sealant for the screw holes. So the “set name: 2 x 120LED lights” is accurate. You’re buying lights, not a full installation kit. If you’re comfortable with that and you already have basic boat wiring gear, it’s fine. If you expect a full plug-and-play setup, you’ll be a bit disappointed.