Exterior Components› Lights and Components

Fcklightbars

4D-Optic Series 400W 44000 Lumens Light Bar

$139.99

SKU: FCK-4D42S-S

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Overview

The Fcklightbars 4D-Optic Series light bar is a powerful lighting solution utilizing new OSRAM LED chips for maximum brightness in its class. It features a 4D Optic Reflector with a 4D Lens, delivering 44,000 lumens from 400 watts of power.
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The Fcklightbars 4D-Optic Series light bar represents the latest in LED technology, incorporating new OSRAM LED chips to achieve exceptional lumen output, positioning it as the brightest in its class. This light bar is built with durability and performance in mind, carrying the same trusted traits as its predecessors and backed by a Fcklightbars Lifetime Warranty. Constructed with a 4D Optic Reflector and a 4D Lens, this 40-inch light bar consumes 400 watts and operates on a 10-30V DC power supply, producing a crisp 6000K color temperature. The housing is black, and the lens is made from durable PMMA (Polycarbonate), with an IP68 waterproof rating ensuring resilience in various conditions. Performance specifications highlight its impressive output, with this 40-inch model delivering 44,000 lumens. Other available sizes range from 10 inches (6,600 lumens) to 55 inches (55,000 lumens). The package includes mounting brackets and hardware, though a wiring harness is sold separately. The Fcklightbars Full Lifetime Warranty provides comprehensive protection against LED failure, manufacturing defects, and condensation or moisture for the product's lifetime.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandFcklightbars
Part NumberFCK-4D42S-S
CategoryExterior Components
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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