4 Inch Double Row LED Light Bar – Pro Series 3.0 | Spot or Flood (40W)

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4 Inch Straight Double Row LED Light Bar

Compact Power. Proven Off-Road Performance.

When space is limited but performance still matters, the 4-inch Straight Double Row LED Light Bar delivers serious off-road lighting in a compact, versatile form. Designed for trucks, UTVs, Jeeps, side-by-sides, and work vehicles, this small but powerful light bar provides dependable forward illumination for trails, work zones, and low-visibility conditions.

Housed in a rugged black aluminum housing and built to withstand vibration, dust, moisture, and harsh off-road conditions, this 4-inch double row light bar is ideal as a bumper light, A-pillar light, reverse light, or auxiliary work light. Small in size, big on performance — it’s lighting you can rely on wherever the trail takes you.

Premium Lexan Lens + IP69K Sealed Housing

Each light is built with an optical-grade Lexan lens—twice as strong as glass and engineered to resist fading or yellowing—paired with an IP69K-rated housing that blocks out salt, spray, sun, and high-pressure water. The result is a crystal-clear, fully sealed system designed to perform for years in the harshest marine or off-road environments.

Premium OSRAM® LEDs

High-efficiency OSRAM LEDs deliver exceptional brightness, clarity, and long-term reliability—engineered for demanding marine use and sustained high-output performance.

Complete Wiring Harness Included

Every light bar comes ready to install with a pre-terminated 12-gauge wiring harness, inline fuse, relay, and switch — plus heavy-duty stainless mounting brackets for a secure, professional-grade setup right out of the box.

Ceramic-Coated, Hydrex-Sealed Construction

Finished with a corrosion-resistant ceramic coating and sealed with our Hydrex gasket system for true IP69K performance. 316 stainless bolt-in mounts provide unmatched strength and durability in saltwater or off-road environments.

Precision Beam Patterns

Choose from spot, flood, or combo configurations for the perfect lighting spread. Our advanced reflector design ensures maximum throw distance and balanced side illumination for total visibility in any situation. Pro Tip: Combo is usually the best choice — it gives you the best of both worlds, with the spot pattern in the center for distance and the flood pattern on the ends for wide coverage.

Download Instructions Here.

Frequently Asked Questions

Q: What makes this light bar different from standard off-road light bars?

A: This light bar is built with a focus on durability, performance, and long-term reliability. It features a fully sealed housing, high-quality internal components, and a rugged black aluminum construction designed to handle vibration, dust, mud, rain, and harsh off-road conditions that cheaper light bars struggle with over time.

Q: What beam patterns are available, and how do I choose the right one?

A: This light bar is available in Spot, Flood, and Combo beam patterns.

• Spot beams provide long-range distance lighting for higher-speed driving and open terrain.

• Flood beams deliver wide, close-range illumination ideal for crawling, work zones, or peripheral visibility.

• Combo beams offer the best of both, combining forward distance with wide coverage — making them the most versatile option for most off-road setups.

Q: Where is a 4-inch double row light bar typically mounted?

A: The 4-inch size is extremely versatile and commonly used for bumper mounts, A-pillars, ditch lights, reverse lights, rock lights, rack lighting, or auxiliary fill lighting. Its compact size makes it ideal for tight mounting locations where larger light bars won’t fit.

Q: How durable is this light bar in harsh off-road conditions?

A: This light bar is fully sealed and built to withstand dust, mud, rain, vibration, and repeated impacts commonly encountered on trails, job sites, and rough terrain. It’s designed for consistent performance in real off-road environments — not just occasional weekend use.

Q: Will this light bar cause glare on my hood or windshield?

A: Proper mounting and aiming are key. During installation, we recommend temporarily powering the light to fine-tune the angle. When positioned and aimed correctly, the light delivers strong forward visibility without excessive hood or windshield glare.

Q: What voltage systems is this light bar compatible with?

A: This light bar is compatible with 10–30V DC systems, making it suitable for most 12V and 24V vehicles, including trucks, Jeeps, UTVs, side-by-sides, and work vehicles.

Q: Does this light bar include a wiring harness?

A: Yes. This light bar includes a complete wiring harness with relay, fuse, and switch, allowing for a straightforward installation right out of the box.

Q: Is this light bar energy efficient?

A: Yes. High-efficiency LEDs provide powerful output while keeping amp draw low, helping protect your electrical system during extended use — especially important when running multiple accessories.

Q: What applications is this light bar best suited for?

A: This light bar is ideal for off-road trail driving, overlanding, work sites, ranching, plowing, utility use, and general auxiliary lighting. Its compact size and strong output make it a great supplement to larger primary light bars.

Q: What warranty does this light bar include?

A: This product is part of our Pro Series 3.0 lineup and is backed by Black Oak LED’s limited lifetime warranty, providing long-term confidence in performance, durability, and support.