Powerful, Built-In Scene Lighting ā Black Housing
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Upgrade your vessel with a clean, factory-style finish using the Black Oak Pro Series 4ā³ Flush Mount Marine Spreader Light ā Scene (Black Housing). Designed to integrate seamlessly into hardtops, transoms, and other flat mounting surfaces, this compact, high-output fixture delivers a wide 120Ā° scene beam that fills decks, cockpits, and work areas with smooth, even light. The sleek black housing offers a modern, low-profile look while eliminating bulky external brackets.
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Engineered for life on the water, this flush mount spreader is built to withstand salt spray, moisture, vibration, and harsh washdowns. Despite its streamlined design, it produces a powerful 3,120-lumen output using premium LEDs and precision optics for expansive coverage without harsh hotspots. Itās also an excellent option forĀ reverse lighting, providing bright, wide-area visibility in tight quarters after dark. Whether used as a dedicated scene light or a reverse light, it delivers dependable illumination you can trust.
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Features
- Lifetime Warranty
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IP69K Rated Housing ā sealed against salt, spray, humidity, and washdowns
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Wide 120Ā° Scene Beam ā smooth, even deck and cockpit illumination
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Premium CREE LED Chips ā maximum efficiency and long-term reliability
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316 Stainless Steel Mounting Bracket ā corrosion-resistant for harsh marine environments
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Ceramic-Coated Finish ā superior UV and saltwater corrosion protection
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Military-Grade Breather ā prevents internal moisture build-up and pressure imbalance
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Premium Lexan Lens ā impact-resistant and will not fade or yellow over time
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Low Amp Draw ā efficient output without overloading your electrical system
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Adjustable Bracket Design ā fine-tune the angle for optimal spread and coverage
In the Box
- (1) 4" Spreader Light
- Pigtail Deutsch Connector - For easy wiring
- Stainless Mounting Bracket and Hardware
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Wide Scene Coverage
Engineered with a 120Ā° scene beam, this light delivers smooth, even illumination across your entire work area ā no harsh hotspots, just usable light where you need it most.
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Seamless Flush Mount Design
Designed for a clean, built-in appearance, this flush mount light integrates directly into hardtops, transoms, and other flat surfaces for a sleek, factory-style finish. Its compact footprint allows it to fit into tight mounting areas without sacrificing output, delivering powerful, wide-area illumination while maintaining a streamlined look.
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Simple, Secure Installation
Includes mounting hardware and a Deutsch-style connector for fast, reliable installation so you can get up and running with minimal effort.
Built for harsh conditions. Backed for Life.
The Black Oak 4ā³ Marine Spreader Light is engineered to thrive in harsh sun, salt spray, and demanding offshore conditions. Featuring a rugged, fully sealed housing and premium components, it delivers reliable wide-area illumination night after night ā all backed by Black Oakās Limited Lifetime Warranty. When you need lighting you can trust on the water, this spreader is built to perform for the long haul.
Specs
| Power & Performance |
| Total Wattage |
40 |
| Total Amp Draw |
2.8 |
| Operating Voltage |
10 - 30V DC |
| Raw Lumens |
3,120 |
| Color Temperature |
6,000 |
| LED Diode Qty |
4 |
| LED Chip |
Cree |
| Beam Pattern |
Scene |
| Beam Angle |
120Ā°
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| Mode |
On/Off |
| Dimmable? |
Yes! (Separate dimmer module Required, NOT included) |
| Durability & Lifespan |
| Life Expectancy |
50,000 Hours |
| Operating Temp |
-40Ā° to 145Ā° F
-40Ā° to 62Ā° C |
| Waterproof Rating |
IP69K |
| Warranty |
Limited Lifetime |
| Guarantee |
30 Day Money Back |
| Wiring & Installation |
| Cord Lead From Light |
16" |
| Wire Harness Included? |
No |
| Wire Harness Length |
N/A |
| Wire Gauge |
16 AWG |
| Fuse Size |
5 Amp |
| Connector Type |
2 Pin Deutsch |
| Mounting Bolt Size |
5/16" |
| General |
| Weight |
.35 Lbs |
| SKU |
4BFMSL |
Size
Pattern
Product Q&A
Frequently Asked Questions:
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Q: What is the 4ā Bracket Mount Marine Spreader Light designed for?
A: This light is built to provide wide, even scene lighting for decks, cockpits, towers, and work areas. Itās ideal for night fishing, docking, cleaning, and improving overall on-board visibility after dark.
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Q: What beam pattern does this spreader light use?
A: The 4ā Marine Spreader Light uses a wide scene beam pattern (approximately 120Ā°) designed to evenly illuminate the area around your boat without harsh hotspots. Itās intended for area lighting, not long-distance projection.
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Q: Is this light safe for saltwater environments?
A: Yes. This light is engineered specifically for marine applications and built to withstand salt spray, humidity, washdowns, and vibration. Its corrosion-resistant housing and sealed construction make it suitable for both freshwater and saltwater use.
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Q: Where can this light be mounted?
A: The adjustable bracket mount allows for flexible installation on T-tops, towers, hardtops, radar arches, transoms, and work boats. The bracket design makes it easy to fine-tune the angle for optimal coverage.
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Q: What voltage system is it compatible with?
A: The light operates on anything from 10-30V DC systems and integrates easily with most boat wiring setups.
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Q: Is mounting hardware included?
A: Yes. The 4ā Bracket Mount Marine Spreader Light includes mounting hardware for secure installation.
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Q: Is this light covered under warranty?
A: Most of our marine lighting products are backed by our industry-leading warranty. Please refer to the warranty section on this page for complete coverage details.
