LED replacement bulbs, the options get better and cheaper

Ben Stein

Ben Stein

Publisher of Panbo.com, passionate marine electronics enthusiast, completed the Great Loop in 2017.

15 Responses

  1. Rod Busbee says:

    Morning Ben, I’ve been working through the same conversion on Bee Haven. Problem is the “24 volt” system that is more like “28 volts”. Bulbs rated for 12 – 24v often fail on initial energizing or last only days. The only ones I’ve found that last are those rated to 30v from Cruising Solutions. There are over 100 lights so I’m just doing an area at a time.

    • Hi, Rod. Note that ALL Marinebeam LED replacement bulbs and fixtures use their own constant current driver good for boat DC power input all the way from 10 to 30 volts, and they’ve also posted a good explanation why, with smoking “inexpensive” LED bulb video included 😉


      Marinebeam’s Jeff Field has also posted an excellent explanation of what’s going with the LED/VHF interference scare:


    • Enrique Carrasco says:

      There’s a brand called NauticLed that makes some great replacement bulbs. They can go 10-35 volts and they have many options of output/color/quality for every lamp kind. It’s a fantastic replacement for halogen and you’ll find that light in cabin improves with less heat and consumption, no dimmed blue poor quality chinese leds. It’s the only “real replacement” that i found for halogens. I know because I have a workshop and some customers asked me to change to led and it was a very hard work to find something that did not look like “chinese rubish”

      • Thanks, Enrique. Apparently some NauticLED replacement bulbs can even work with the 12 and 24 volt AC fixtures found on some big yachts and ships, though the company seems to work primarily B2B:


        Also, while I don’t doubt that many poor quality LEDs are manufactured in China, that does not mean they can not make good ones, and the 10-for-$14 halogen G4 replacements that Ben Stein writes about above seem to be an example: https://amzn.to/2RvVM61

  2. Allan Seymour says:

    When we bought the SallyW (37′ LNVT) almost 10 years ago the owner was a bit of a watt nut. So it was almost all led bulbs retro fitted into the old fixtures. It was a pretty dark boat. Over the years I have replaced most of the old leds and improved the light quality and quantity .If you visited the boat you would not think it was a dark boat. Even installed Hella running lights which I highly recommend . We are able to get by with only 1 8D battery with 2 small fridges. I can go 2 nights on the hook without running the battery down 1/2 . I have no led drivers only bulbs and therefor no noise. Most of us are still changing bulbs to as they get better looking . The future is not looking dim! Start changing bulbs on your boat as we all have done at home.

    • Ben SteinBen Stein says:

      Good morning Allan, just one note of clarification on the LED drivers. Each retrofit bulb you have installed will have some form of driver built into the bulb. These drivers are voltage transformers. The Marinebeam article on RF that Ben E. posted above also does a nice job explaining the need for drivers and why they can produce RF interference.

      • Jeff Field says:

        Ben, the Marinebeam LED drivers are not “voltage transformers”, but rather constant-current drivers. LEDs care about current. Besides, “transformers” only work on AC. Faraday’s law of inductance insists upon that. Most drivers these days are some sort of switch-mode power supply, or linear regulator. The Marinebeam G4 bulbs also include a transient voltage suppressor and a PTCC thermal foldback device. The former protects the electronics from ESD, and the latter folds back the current in the case the bulb begins to reach an over-temp or thermal runaway situation.

  3. Allan Seymour says:

    As usual your right Ben I sort of know that but they are so small its hard to remember.

  4. I was going to make a rude comment about boats with 100+ overhead lights – and then I counted fixtures on Atsa… Not near 100, but way more than I would have guessed without counting. I went thru the same process you did, Ben – I started with some cheep eBay Chinese (I think there’s one left from this era, in an area seldom entered) and progressing to Marine-store “LED replacements” (mostly for nav lights) and I’ve settled on Marinebeam – their bulbs just keep on working, and for nav lights and the ones we use every day, that’s essential. I do note that their prices are much lower than they were a few years ago. I have been particularly impressed with the LED replacement “tubes” for fluorescent fixtures.
    On those “drivers” – in actuality, they are current limiters/regulators, not voltage regulators.

  5. RB says:

    Three years ago I converted all the lights in my boat to LEDs. I used these inexpensive bulbs on all the overhead fixtures and I’ve been very pleased with them. The pins on the bulbs were a bit too long, causing them to stick out too much and interfering with the lens. That was easily remedied by shortening the pins with diagonal cutters. I also had 2-3 bulbs DOA and the supplier replaced them immediately.

    Incidentally, I recently replaced all the light fixtures in the engine compartment with LED fixtures designed for trucks and RVs. These lights create interference with the FM stereo, but not with the VHF comm. It’s not a big deal because the lights are only on when I’m working on the engines.

  6. greg says:

    I am using halogen shaped 1.5 watt, 180-lumen bulb, mentioned above, on my boat for the year and a half. They work really good, but some of them (2 out of 18) died after one year. However considering the price, i think it is not a such a big deal. Also they do not cause any interference with VHF radio.
    Also I am using the red colored LED bulbs, from the same manufacturer. They are bit worse and one of them died only after 10 month. Again, considering the price, it is not such a big deal.

  7. Marie Holmes says:

    We replaced all (most) of our LED lights on our Carver 450 Voyager with these: https://smile.amazon.com/LEORX-180LM-3000-3500K-24-LED-Bulbs/dp/B01GJD7HOS/ref=sr_1_1?s=hi&ie=UTF8&qid=1547140083&sr=1-1&keywords=leorx

    They have worked out great. Inexpensive and we like the light they put out. The only draw back to them is in our salon. We have a dimmer and if you replace all of the bulbs they won’t dim. So we left one halogen. It isn’t that noticeable and does not bother us.

    One big advantage to going halogen is the draw on our batteries. Hubby used to have to fill them 2-3 times a year; now they lose very little fluid over a full summer.

  8. Bruce says:

    Hi Ben,
    Thanks for the interesting article. Worth nothing that converting ALL lights to LED isn’t always worth it. We have lights in the some areas (e.g., forepeak and hanging locker) that are turned on maybe a total of 5 hours in a year. The energy savings are so minimal that it doesn’t make sense to put new bulbs in. We’ve met several cruisers who go through their whole boat changing every bulb. But that could add to RF woes (with the wrong bulb) and it doesn’t always make economic or electrical-savings sense.

  9. Neal says:

    Hello, this is a follow up question on the above article. I tried replacing salon/head lights with LEDs (some MarineBeam, others from amazon). My boat had all 20w halogen G4 bulbs running from Jefferson electric Powerformers (low voltage transformers). Some of the LED’s worked, some didn’t and blew right away. The ones that didn’t blow right away, did so shortly thereafter, so I am stumped. Do I need to replace the JE powerformers to constant drivers? Is it a polarity issue? thx for any help.

  10. Jeff says:

    Hi Neal,

    Marinebeam LED bulbs are for 10-30 volts DC. They are designed to operate on DC at either 12V or 24V. The fact that you have said that you are using a transformer means that you are operating your LEDs on AC rather than DC. We know this because transformers will not work at all on DC. Faraday’s Law of Inductance prohibits it. So, you are just stepping down an AC voltage from say 120VAC to say 24VAC. So, there is nothing wrong with the bulbs, or your transformer, but they are just not the right selection for your application. The good news is that your issue is easily solved. We can help you select a DC/DC converter to inexpensively solve the problem permanently. Just contact me at jeff(at)marinebeam.com.

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