Underwater Fishing Light
- Light Attractant
- 23 watts
- Battery
- Plastic, Resin
- Better rated than 80%
- More reviewed than 80%
A dual-power dock and boat light for building a bait chain after dark, provided you're willing to keep it clean if left in the water long-term.
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How it ranks among the 16 light attractants we track
4.6★ across 276 Amazon ratings, Bayesian-smoothed toward the category average.
276 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
500+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 16 light attractants we track - how the scorecard works · full light attractants data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jul 5, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A 23W green LED submersible fishing light on a 30 foot cable, powered by either a 110V outlet or a 12V battery clamp and cigarette adapter, rated IP68 for fresh or salt water.
The light is built to attract baitfish and predators around docks, boats, or kayaks rather than to fish with directly, using six separated light bars to manage heat. Long-term underwater use calls for pulling it out every couple of weeks to clean off biofouling before it affects brightness.
- 23W green LED, 2300 lumens output
- 30 foot power cable
- Includes AC adapter, 12V clamps, and cigarette adapter
- 18-month warranty
Who it's for
Dock and boat anglers who want to draw in baitfish after dark with a plug-in or battery-powered light. Not built for anglers who want a purely cordless portable light.
Strengths and trade-offs
Drawn from this product's published specifications.
- Runs on either 110V AC or 12V DC power
- 2300 lumens from a 23W draw
- IP68 rated for fresh or salt water use
- 30 foot cable limits placement from the power source
- Needs periodic cleaning to prevent biofouling buildup
Performance notes
A power transformer rated at 95% efficiency drives 2300 lumens from 23 watts, and the six-bar LED layout is meant to spread heat so the unit doesn't run hot during long sessions. It ships with both a 110-240V AC adapter and 12V battery clamps plus a cigarette lighter adapter, covering shore power, batteries, or portable power stations.
Specifications
| Brand | Underwater |
|---|---|
| Model | FG20H |
| Dimensions & fit | |
| Item Weight | 1 pound |
| Capacity & performance | |
| Light Output Maximum | 2300 Lumens |
| Power & efficiency | |
| Wattage | 23 watts |
| Power Source | Battery |
| Voltage | 110 volts |
| Construction & materials | |
| Material Type | Plastic, Resin |
| Shade Material | Resin |
| Color | 110V AC / 12V DC |
| Finish Types | Polished |
| Compatibility & installation | |
| Mounting Type | Submersible or None |
| Included components | |
| Unit Count | 1 |
| Included Components | 110-240Vac Power Adapter, 18-Month Warranty and lifetime friendly support, Instruction Manual, Waterproof Carrying Bag |
| Other details | |
| Number of Light Sources | 6 |
| Shape | Round |
| Style Name | Modern |
Other Underwater light attractants
How it compares
This product against the closest alternatives we track in light attractants.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Underwater Fishing LightThis product | 4.6 / 5 | 276 | 4.0 / 5 |
| ReeMoo 12V 126 LEDs 13W Fishing Light Underwater Night Fishing Lure Finder Light Green…ReeMoo | 4.5 / 5 | 92 | 3.9 / 5 |
| SAMDO IP68 12V LED Underwater Fishing Light 1080 Lumens Fish Attracting LightSAMDO | 4.3 / 5 | 1,009 | 3.9 / 5 |
| 120 2835 SMD LED Underwater Fishing Light，8" 10.5W DC 12V 1000ML Green Night Fishing…120 | 4.3 / 5 | 156 | 3.8 / 5 |
| Glooglitter 6 Pcs Fishing Glow Sticks LED Fishing Pole Light Night Fish Alert Glow Stick…Glooglitter | 4.3 / 5 | 330 | 3.8 / 5 |
Similar light attractants from other brands
Questions about the Underwater FG20H
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Can this fishing light run off a car battery?
Yes, it includes 12V battery clamps and a cigarette lighter adapter in addition to the 110-240V AC power adapter.
Is this light safe for salt water use?
It carries an IP68 rating for both fresh and salt water, though the maker recommends pulling it out every 15 days for cleaning during long-term saltwater use.
How long is the power cable?
The light comes on a 30 foot cable.