4 Inch Flush Mount Black Marine LED Spreader Light - Pro Series 3.0 | Scene (40W)
4 Inch Flush Mount Black Marine LED Spreader Light - Pro Series 3.0 | Scene (40W)
Price: $136.00 & Free Shipping
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Powerful, Built-In Scene Lighting – Black Housing
Upgrade your vessel with a clean, factory-style finish using the Black Oak Pro Series 4″ Flush Mount Marine Spreader Light – Scene (Black Housing). Designed to integrate seamlessly into hardtops, transoms, and other flat mounting surfaces, this compact, high-output fixture delivers a wide 120° 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.
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. It’s also an excellent option for 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.
Features
- Lifetime Warranty
- IP69K Rated Housing – sealed against salt, spray, humidity, and washdowns
- Wide 120° Scene Beam – smooth, even deck and cockpit illumination
- Premium CREE LED Chips – maximum efficiency and long-term reliability
- 316 Stainless Steel Mounting Bracket – corrosion-resistant for harsh marine environments
- Ceramic-Coated Finish – superior UV and saltwater corrosion protection
- Military-Grade Breather – prevents internal moisture build-up and pressure imbalance
- Premium Lexan Lens – impact-resistant and will not fade or yellow over time
- Low Amp Draw – efficient output without overloading your electrical system
- Adjustable Bracket Design – 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
Wide Scene Coverage
Engineered with a 120° scene beam, this light delivers smooth, even illumination across your entire work area — no harsh hotspots, just usable light where you need it most.
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.
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 4″ 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 — all backed by Black Oak’s Limited Lifetime Warranty. When you need lighting you can trust on the water, this spreader is built to perform for the long haul.
| 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 | 120° |
| Mode | On/Off |
| Dimmable? | Yes! (Separate dimmer module Required, NOT included) |
| Durability & Lifespan | |
| Life Expectancy | 50,000 Hours |
| Operating Temp | -40° to 145° F -40° to 62° 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 |
Frequently Asked Questions:
Q: What is the 4” 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. It’s ideal for night fishing, docking, cleaning, and improving overall on-board visibility after dark.
Q: What beam pattern does this spreader light use?
A: The 4” Marine Spreader Light uses a wide scene beam pattern (approximately 120°) designed to evenly illuminate the area around your boat without harsh hotspots. It’s intended for area lighting, not long-distance projection.
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.
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.
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.
Q: Is mounting hardware included?
A: Yes. The 4” Bracket Mount Marine Spreader Light includes mounting hardware for secure installation.
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.
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- Reviews
- Questions
United StatesDamn they are bright!
When I turned them on for the first time(I waited till dark), Was, DAMN they are bright. I use the lights when backing up or locking the property gate behind me. The stock “Cargo” lights don’t do enough for me, neither do the reverse lights in the taillights. Don’t get me started on the little light on the tailgate that is supposed to light up the area behind the truck. I love these lights and use them just about every time I drive my truck. People ask me if they were put on at the factory, and I tell them they are from BLACK OAK.
United StatesImpressive and quality
I was looking for LED lights for my 2023 F250 Side Bed Step Pocket, Black Oak had the perfect lights, 4” Flush Mount Spreader fit perfectly and Accent lights round off the factory pocket. These lights light up the South Padre Island Beach for night driving and provide great lighting for Brush country rabbit hunting along with awesome lighting for ranch gate entrance and existing. I want to Thank Black Oak for helping me choose my dream lights and I highly recommend Black Oak Products!!!
CanadaGreat Product!
I took a few pictures of my set-up with your 2" (side) 4" (front) spreader lights and suction mounted spotlight. Works great!
United StatesOnly Black Oak
Only Black Oak for this rig.
Impressed with the lights
I just built a truck bed and incorporated 4 of your lights into the build. I am really impressed by the quality of the lights and how complete the kits are and the quality of the packaging. I am drawn to your company because you are clearly not another fly-by-night Amazon product, but you are not overpriced because of name recognition à la Rigid. You land right in the Goldilocks zone for the conscientious consumer.
