Best Underwater Dock Lights For Fishing – The Green Blob Underwater 7500

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If you have never considered a set of  underwater dock lights for fishing, you won’t be disappointed if you give the Green Blob a try.

Fishing at night can be one of the most serene and productive times to fish. Fish tend to move toward more shallow water at night, and so night fishing at the end of a dock or along the shoreline is a perfect time.

With an underwater LED dock light, you can attract the small fish used as bait to bring in the game fish. The Green Blob will do just that for you and give you a unique fishing experience at the same time!

Table of Contents

Review Of The Green Blob Underwater LED Dock Lights

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The Green Blob 7500 Underwater LED light for fishing is a rugged and completely waterproof underwater green LED light fishing system. As the name aptly implies, the Green Blob creates a massive green glow that will draw many baitfish to that inviting light.

Fortunately, this Blob is not the same as this Blob with Steve McQueen. With the Green Blob underwater lights for fishing, you will be happy to see the predators arrive.

While the hungry predators are lurking in the shadows, they will be waiting to strike any unsuspecting baitfish in the area. 

The Green Blob LED draws the baitfish as they swim in the light in search of plankton. In essence, this makes the area you have placed the underwater light your very own stocked pond full of baitfish and large game fish coming in for the strike.

Best Underwater Fishing Lights

You will find that the Green Blob fishing lights are the most versatile, durable, and affordable underwater LED fishing lights on the market today.

The Green Glob can be used from a boat dock, pier, or even your fishing boat. You can use this in ponds, lakes, fresh or saltwater. 

Handmade in Texas, this Lone Star State made light is long-lasting. Rated at 50,000 hours of use, the Green Blob will keep glowing night after night.

Each Blob will come with a thirty foot heavy-duty, insulated 16 gauge cable built for outdoor use. All the LED’s are 100% waterproof with IP68 cases that allow you to submerge the Blob for extended periods.

Several power supplies, a 3-prong plug, a cigarette lighter adapter, alligator clips, or a combination will give you the ability to use the light in various locations. 

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It is worth giving the Green Blob a try as it comes with a 100% satisfaction guarantee that if something goes wrong with the Blob, they will repair or replace your Blob within six months of purchase.


  • Comes in 7,500 lumens (150 LED lights) and 15,000 lumens (300 LED lights).
  • 7,500-lumen version is 9 inches long.
  • 15,000-lumen version is 16 inches long.
  • It comes with alligator clips for use with boat battery.
  • Draws 4.5 amps DC.
  • Works in both saltwater and freshwater.
  • Covered by a 6-month limited warranty

Why Should You Use An Underwater Dock Light For Fishing?

The first and most obvious use of underwater dock lights is for catching fish. Most anglers’ find that the beauty of using an underwater dock light is that you won’t have to stop fishing just because the daylight runs out. 

How Does An Underwater Dock Light For Fishing Work?

An underwater light for docks attracts small fish. The green underwater light reflects off tiny particles in the water like phytoplankton and zooplankton. These small particles produce a food source for baitfish. 

The baitfish are attracted to this food source because  they can see it in the light. Once the baitfish arrive, the predator fish will come in for the baitfish, their food. Watching how this food chain works is fun to see. 

Once you have underwater fishing dock lights, the smaller baitfish get used to where this phytoplankton is located and regularly come to that area. It may take a few days or a few weeks, but the fish will soon learn that the area around your dock is a feeding station.

Placement Of Your Green Blob Waterproof Dock Lights

An important aspect to consider when using your underwater LED dock lights for fishing is the placement of your lights on your dock. There are two things to keep in mind when considering where to drop your lights.

First, you are going to want the light centrally located. This will maximize the area of exposure. If you have a U-shaped dock, it would be best to put your light in the center of the U. This vantage point will give you a clear view that allows you to see the entire food chain from the baitfish to the predators.

The second crucial aspect is to make sure that the spot you drop the light will be deep enough to attract fish. If you are going all out and buying several lights, you would want a light about every six feet along the sides of the dock. 

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A 12-foot dock could have up to four lights: two on each side. However, if you are just starting with a waterproof dock light, drop the light at the dock’s end, where the water will be the deepest.

How Do You Fish When Using Green Underwater Dock Lights?

As mentioned before, you need to establish a feeding station for the baitfish by leaving the waterproof dock lights in the water at the same spot each night. The fish will learn that the area is a place to feed. That will bring the fish back night after night. 

It is best to let the fish get used to the underwater light rather than fishing in this light pool right away. Once you give it a few days or a week to let the fish get acclimated, then you can start to fish.

Right Kinds Of Lure

Before you get out your pole and start casting away, make sure you have the right type of lure. You will want a lure that looks much like the small fish that come to feed on the phytoplankton shown in the green light. 

The ideal lure is any kind of lure that looks like a small minnow with a moving tail. When you choose a lure like this, it will imitate the baitfish that typically circle in the light and attract the predator fish.

Another way to lure the game fish is to use the baitfish that have come to the underwater light. All of them are free bait. 

Use a net to scoop out some of the minnows swimming around and use them as bait on your hook as you cast the outer fringe of the light. After all, those baitfish have attracted the predators, so they are a good (and free) choice to use for a lure.

Cast Past The Green Underwater Dock Light

Once you have your lure and have seen some predators coming, now is the time to cast! It is important to remember not to cast for fish directly in the green light. If you cast to the edge of the light, it will produce better results than casting in the middle of the light. 

The game fish won’t hang out in the brightest spot. As predators, they use the element of surprise for their prey. The best way for them to do that is to circle on the outside of the light. Then, when they feel the moment is right, they will go after their meal. 

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Yes, for sure, you will see some game fish in the middle of the light, but you will have your best chance of catching them by casting to the edge of the lighted area.

In Conclusion

The Green Blob 7500 Underwater LED light for fishing is an ideal tool for night fishing. It is a unique, fun way to enjoy this sport after the sun goes down. 

Once you try fishing this way, you will find it fascinating to watch the baitfish swim under the water’s surface. Some purchase these underwater lights for the sole purpose of watching the fish at night.

Whatever you choose to do, you will find that this fishing tool is fun and interesting to fish.


Do underwater dock lights for fishing need to be cleaned?

The need to clean the lights will depend on the environment that they are in. Cold saltwater and freshwater require only occasional checking for the growth of algae throughout the year.
If the light is in warm salt water, you will need to check the light every three to four weeks. Spray your light with WD40 or another lubricant to help keep barnacles from adhering. 

If the underwater dock light needs cleaning, how do you clean it?

Remove the light from the water by pulling it up and out of the water. Make sure you disconnect the light from the power source.
Use a hard bristled brush to scrub the lens clean of any type of growth. If the growth is heavy, use a putty knife or paint scraper. If you leave the light out in the sun for 24 hours before cleaning, it will usually scrape off more easily.

What type of fish will you see with an underwater dock light?

It will depend on where you live to determine what type of fish will be attracted to the underwater light.
People in Florida will probably see snook, tarpon, redfish, snapper, largemouth bass, and more. If you are in the New York area, you will probably see walleye, northern pike, and smallmouth bass.
These are the types of fish that will be attracted to the baitfish swimming in the green light.

Can I leave the underwater light out all year?

If you live in a climate that gets snow and ice, it is best to bring the lights out of the water for winter. Do this before the water freezes. The mini LEDs can sustain damage from the ice.

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