SKU: 81413676108

STEDI ST3303 Pro 28.2 Inch 40 LED Light Bar

Sale price$9599.40 Regular price$10666.00
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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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Description

STEDI ST3303 Pro 28.2 Inch 40 LED Light BarDESCRIPTION THE ULTIMATE LIGHT BAR For almost a decade, the name STEDI has stood for cutting edge design and market leading performance. The ST3303 PRO is an aggregation of all things that have made us the globally distributed, coveted brand born right here in Australia. A NEW REALM OF PERFORMANCE Every good story starts with CREE LEDs. So, we commissioned CREEs XPL HI emitter, which represents a +9% increase in lumen output at the same drive current

DESCRIPTION

THE ULTIMATE LIGHT BAR

For almost a decade, the name STEDI has stood for cutting-edge design and market-leading performance.  The ST3303-PRO is an aggregation of all things that have made us the globally distributed, coveted brand born right here in Australia.

A NEW REALM OF PERFORMANCE

Every good story starts with CREE LEDs. So, we commissioned CREE’s XPL HI emitter, which represents a +9% increase in lumen output at the same drive current over the already great (but now ageing) CREE XM-L2 found in the previous model. 9% doesn’t sound like much, but the kicker is that the emitter dies size drops down from 5 x 5mm to 3.5 x 3.5mm. Higher lumen density with a tighter source improves the optic and emitter size relationship – We’ve effectively increased the optic diameter by 40% without physically increasing it. The result is huge light volume and tremendous beam throw. 

NOW, ARE YOU SITTING DOWN?  

Where others stop, we get started. The current draw is enormous, and quite literally unlike anything else on the market. The 60 LED variant draws 36 amp at 13.6v & @ 12.5v 40 amp. Have we got your attention yet? Now, you must, without any exception, we repeat, you must use the heavy-duty, dual relay (yes dual relay!), dual fused wiring harness we supply. The current is so intense, that the 40 LED and 60 LED bars have two separate power cables (yes two separate power cables!) on either side of the light bar, and two separate breathers (yep two!) to deal with the enormous current draw.  

BAR NONE.

Unquestionably, ST3303 PRO sits at the pinnacle of the STEDI offering. A pure expression of capability and design that converges with brutal performance, making the all-new ST3303 PRO unmistakably STEDI. 

VIDEO

LUX GRAPH

DIMENSIONS

NIGHT SHOT

KEY FEATURES
  • Registered Design: 201915829.
  • CREE® XLamp XP-L HI undomed LEDs using CREE’s breakthrough SC5 Technology™
  • RFI and EMI suppression circuit. Guaranteed to not interfere with Radio or GPS Equipment

  • IP68 - Submersible to 3m 

  • High Current Deutsch DTP-2 25A connectors

  • 32mm diameter parabolic reflectors 

  • Spread and Spot beam pattern

  • 4mm thick 304 stainless steel side brackets included.

  • Cast Alloy adjustable sliding bracket included.

  • Nitto Denko™ Breather with PTFE microporous membrane

  • Very heavy-duty Smart Plug & Play ADR compliant Wiring Harness. (Switch, Dual Fuse, Dual Relay and HB3 and H4 Piggyback Adaptors) included

TECH SPECS
LED Manufacturer CREE XPL Hi
LED COUNT 40
VOLTAGE 9V - 32V
CURRENT DRAW (AMPERES) 25.3a @13.6v
LENS MATERIAL OPTICAL GRADE, HARD-COATED LEXAN
RAW LUMENS 43,800Lm
EFFECTIVE LUMENS 22,400Lm
PEAK INTENSITY (CANDELA) 656,100cd
HOUSING MATERIAL A360.0 Cast face plate, extruded Aluminium heat sink
LIFESPAN 50,000
FLOOD BEAM 50°
SPOT BEAM 9°
INGRESS PROTECTION IP68
OPERATING TEMP -40°C ~ +150°C
WEIGHT 4.960kg
WHAT'S IN THE BOX
  • ST3303 PRO 40 LED 28.2 Inch Light Bar
  • Easy Fit High Beam Wiring Harness with H4 & HB3 adapters to High Beam
  • 3 x Lower Mounting Brackets with Stainless Steel Fasteners
  • 2 x 4mm thick Stainless Steel Side Brackets
  • 2 x Orange End Caps
  • 2 x Grey End Caps

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 81413676108

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Travis McKinstry
Cuba, US
★★★★★ 5
High quality, super sticky, very effective
Style: 30 sqft
As long as the surface is thoroughly cleaned, these mats will stick to just about anything. They provide my car with a tremendous amount of sound dampening and have made riding in the car 10 times more enjoyable. I drive a Toyota Yaris and although the engine is built like it's meant to last forever (imagine that), the rest of the car is not of high quality. Which means we used to get A LOT of noise coming from the road, other cars, etc. After I installed these mats which, by the way, I wasn't able to install on every surface I wanted to install them on (due to lack of tools to be able to disassemble certain parts of the interior), the noise coming from outside the car is nearly completely gone. I covered the underside of my hood, the entire interior part of the hatchback, most of the floor in the trunk / spare tire well, and the entire interior side of the doors. The parts I couldn't get to (or didn't want to) were: the ceiling, underneath the driver & passenger seats, behind the dash and the floor for the 2nd row seating. As you can see I left a lot of surfaces untreated with this product AND STILL it blocks most of the sound. To note: people recommended getting the roller tools to help install these mats. I got a few of them in different sizes and they worked O K. Not because of the quality of the tool but because some places you need to install these mats in don't have enough clearance to use the tool. That being said, for the larger surfaces, the roller tools help a lot. Also I found it very beneficial to use aluminum tape while installing these. The tape I used is specifically designed for materials that undergo high temperature changes (like your dryer vents, etc.). This wasn't because the mats were not sticky enough but because there were some places I installed the mats with small gaps between them. I'd also recommend getting some kind of fluffy insulation-type material for large spaces that need noise dampening. Rock wool, for example, worked great for me. As an example, the interior sides of the 2nd row seating walls had large spaces between the plastic interior cover and the metal part of the car wall. I'd install the mats on the metal but was left with 6" - 7" of space between it and the plastic cover. I chose to fill those spots (and spots like it) with insulation which provided EVEN MORE noise dampening.
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Reviewed in the United States on November 25, 2024
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Cee
Waukegan, US
★★★★★ 5
Best butyl out there.
Style: 30 sqft
If you want the money you're spending on equipment to pay off, you NEED to deaden sound! I've used every major brand and siless is my favorite to work with and the best value for your money, I'm not just adding weight, it's a thermal barrier and reduce outside noise. I turned a 10 year old, base model civic into what feels like a top tier Lexus . Does not offgas, no smell. Super easy to install. Make sure you get a set of rollers! They're required to achieve the advantages of this stuff, it MUST be adhered well and you don't want to tear the interior out twice.
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Reviewed in the United States on August 10, 2025
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Amazon Customer
Waukegan, US
★★★★★ 5
Yes
Style: 30 sqft
Easy to work with, quiets doors very well, cuts very easily to any shape needed or wanted with scissors, sticks well, and molds in to place well
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Reviewed in the United States on May 11, 2026
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Mathew Pullin
Phoenix, US
★★★★★ 5
Easy to install and easy to cut! Good quality
Style: 30 sqft
Details in the video! Only used dynamat in the past so I was hesitant to use this. Hesitant no more and the price was good. Good value, easy install, very happy!
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Reviewed in the United States on January 26, 2026
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GS_adventure_Guy
Lexington, US
★★★★★ 5
Worth every penny
Style: 6 sqft
Works great! I have a van and it took all the noise out of the rear doors. I am almost in shock at how quiet it is now.
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Reviewed in the United States on May 7, 2026

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