STEDI ST3301 PRO SERIES
STEDI ST3301 PRO LED Light Bar | 24.5", 27.5" & 41"
High-volume mid-range performance. Huge shoulder visibility. Three sizes built around the same ST3301 PRO philosophy.
The STEDI ST3301 PRO is built around a simple idea: the best auxiliary light isn't necessarily the one that throws the narrowest beam the farthest. It's the one that lets you see more of the road, trail and terrain that actually matters.
Revised reflectors and premium OSRAM LEDs create a broad flood/spot/flood combination beam with enormous short-to-mid-range volume, strong forward penetration and excellent illumination across road shoulders.
Choose the 24.5" for tighter installations, the 27.5" for a strong middle ground, or step up to the 41" for maximum output and the configuration we use in compatible Prinsu roof-rack builds.
BUILT TO SHINE
Light the Road, Not Just a Spot in the Distance.
STEDI engineered the ST3301 PRO around a high-volume mid-range beam with particularly strong shoulder illumination.
The larger-diameter central spot blends into wide flood optics, filling more of the driver's field of view instead of concentrating everything into one narrow column of light.
That makes the ST3301 PRO especially compelling for wildlife country, forestry roads, remote highways, overland travel and fast backroad driving.
ST3301 PRO Performance, Engineered Into Every Size
Premium OSRAM LEDs
16, 18 or 28 OSRAM LEDs depending on size, working with STEDI's revised reflector design to produce high effective output and strong beam control.
Flood / Spot / Flood
Wide flood optics flank the central spot section, creating lateral visibility while maintaining useful forward reach.
Natural White Output
Depending on size, STEDI specifies a neutral 5600K to 5700K colour temperature designed to provide strong contrast without an excessively blue appearance.
IP68 Protection
Designed for water, dust, mud and harsh touring conditions, backed by STEDI's published IP68 ingress protection rating.
GE Lexan Lens
The primary lens uses tough GE Lexan polycarbonate to protect the optics from impacts, debris and demanding road conditions.
Multiple Mounting Options
Adjustable lower slide mounts and side brackets are included, giving installers flexibility across bumpers, racks and custom lighting builds.
CHOOSE YOUR ST3301 PRO
Same Beam Philosophy. Three Different Footprints.
Bigger isn't automatically better. Choose the size that suits the mounting location, vehicle proportions and amount of output you actually need.
COMPACT
24.5"
Serious performance when mounting space is at a premium.
- 16 x OSRAM LEDs
- 7,650 effective lumens
- 544 m @ 1 lux
- 2.495 kg
- 9.7A @ 13.6V
Best for: bumper openings, grille mounting, compact front-end installations and builds where a full-width bar isn't required.
BALANCED
27.5"
A strong middle ground between compact packaging and increased beam volume.
- 18 x OSRAM LEDs
- 8,250 effective lumens
- 600 m @ 1 lux
- 2.800 kg
- 11.8A @ 13.6V
Best for: larger bumpers, grille openings, touring builds and customers wanting more reach and output without moving to a full-width rack light.
MAXIMUM COVERAGE
41"
Maximum ST3301 PRO beam volume and our choice for compatible Prinsu roof-rack installations.
- 28 x OSRAM LEDs
- 11,850 effective lumens
- 784 m @ 1 lux
- 4.9 kg
- 12.3A @ 13.6V
Best for: roof racks, full-width installations, serious touring rigs and builds where maximum usable scene illumination matters.
BEAM PERFORMANCE
Don't Just Compare Lumens. Compare Where the Light Lands.
Each ST3301 PRO increases output and reach as the housing grows, while maintaining the same high-volume beam philosophy.
24.5" ST3301 PRO
Compact Bar. Broad Field of View.
The 24.5" version provides strong short-to-mid-range volume and useful shoulder illumination while fitting into tighter mounting locations.
27.5" ST3301 PRO
More Reach. More Volume.
The 27.5" steps up to 18 LEDs and 600 metres at 1 lux while retaining the broad flood/spot/flood character of the ST3301 PRO family.
41" ST3301 PRO
Maximum ST3301 PRO Coverage.
With 28 OSRAM LEDs, 11,850 effective lumens and 784 metres at 1 lux, the 41" delivers the largest lighting footprint in this ST3301 PRO lineup.
BUILT INTO THE RACK
Why We Pair the 41" With Prinsu.
A roof-mounted light bar works best when it looks intentional. The long, slim ST3301 PRO housing suits the low-profile architecture of Prinsu racks particularly well.
On compatible applications, a Prinsu wind deflector with light bar cutout creates the opportunity to integrate the STEDI bar across the front of the rack instead of simply hanging a light somewhere above the windshield.
Cap-it can help confirm the rack, light-bar configuration, mounting requirements and wiring strategy before the build begins.
MAKE IT YOURS
Optional Amber & Blackout Covers
Add optional ST3301 PRO covers to change the appearance or character of your lighting setup.
Blackout covers provide a clean covered look when the bar is not in use, while amber covers give you another lighting option for conditions where amber illumination is preferred.
What's Included
Light & Mounting
- 1 x STEDI ST3301 PRO LED Light Bar in selected size
- Stainless bolt and nut set
- Sliding lower mounting brackets
- Side mounting brackets
- 2 x orange side caps
- 2 x grey side caps
Wiring
- Quick-Fit high-beam wiring harness
- 12V relay
- Wiring kit
- On/off switch
- HB3 piggyback adapter
- H4 piggyback adapter
Technical Specifications
| Specification | 24.5" | 27.5" | 41" |
|---|---|---|---|
| LEDs | 16 x OSRAM | 18 x OSRAM | 28 x OSRAM |
| Raw Lumens | 13,600 lm | 15,300 lm | 23,800 lm |
| Effective Lumens | 7,650 lm | 8,250 lm | 11,850 lm |
| 1 Lux Distance | 544 m | 600 m | 784 m |
| Peak Intensity | 295,936 cd | 360,000 cd | 614,656 cd |
| Colour Temperature | 5600 K | 5700 K | 5700 K |
| Current Draw | 9.7A @ 13.6V | 11.8A @ 13.6V | 12.3A @ 13.6V |
| Operating Voltage | 10-45V DC | 10-45V DC | 10-45V DC |
| Beam Pattern | Flood / Spot / Flood | Flood / Spot / Flood | Flood / Spot / Flood |
| Flood Beam Angle | 45° | 45° | 45° |
| Spot Beam Angle | 11° | 11° | 11° |
| Waterproof Rating | IP68 | IP68 | IP68 |
| Housing | Die-Cast Aluminium | Die-Cast Aluminium | Die-Cast Aluminium |
| Lens | GE Lexan | GE Lexan | GE Lexan |
| Weight | 2.495 kg | 2.800 kg | 4.9 kg |
| Operating Temperature | -40°C to 60°C | -40°C to 60°C | -40°C to 60°C |
| Warranty | 5 Years | 5 Years | 5 Years |
See the ST3301 PRO in Action
PROFESSIONAL INSTALLATION
Buy the Light. Have Cap-it Install It.
Auxiliary lighting installation involves more than bolting the bar to the vehicle. Mounting location, high-beam triggering, CAN bus systems, switching, wire routing and weatherproof electrical connections all need to work together.
Roof-rack installations add another layer, including bar position, rack compatibility, wind deflector configuration and clean routing from the roof into the vehicle.
Participating Cap-it locations can help determine the correct installation approach and professionally integrate STEDI lighting into compatible trucks, SUVs and 4x4s.
WHY BUY STEDI FROM CAP-IT?
STEDI Performance. Cap-it Support.
Established 1977
Decades of experience outfitting Canadian trucks for work, travel and adventure.
25+ Retail Locations
Buy online or talk to a real truck accessory specialist near you.
Professional Installation
Participating locations can install and integrate STEDI lighting into compatible vehicle and rack systems.
See It in Person
Select Cap-it locations feature physical lighting displays so you can see STEDI products before you buy.
Frequently Asked Questions
All three use the same ST3301 PRO beam philosophy and core construction. As size increases, so do LED count, effective output and beam reach. The 24.5" is the most compact, the 27.5" provides a strong middle ground, and the 41" delivers maximum output and coverage.
Cap-it commonly uses the 41" ST3301 PRO for compatible Prinsu roof-rack installations because its long single-row format integrates well across the front of the rack. Compatibility still needs to be confirmed for the specific rack and vehicle application.
No. The ST3301 PRO is specifically designed around high-volume short-to-mid-range illumination with strong shoulder visibility, while still providing substantial forward reach.
Yes. STEDI includes a Quick-Fit high-beam wiring harness with relay, wiring kit and switch, along with HB3 and H4 piggyback adapters. Additional vehicle-specific components may still be required.
Yes. Optional ST3301 PRO amber and blackout covers are available separately in compatible sizes. View ST3301 PRO Light Bar Covers.
STEDI specifies an IP68 ingress protection rating across the ST3301 PRO sizes listed here.
Professional auxiliary-lighting installation is available through participating Cap-it locations. Contact your nearest store to discuss your vehicle, mounting location, rack configuration and wiring requirements.
THE CAP-IT TAKE
The ST3301 PRO Makes Sense When You Want to See the Whole Road.
There are light bars built to win a distance contest. The ST3301 PRO takes a different approach.
It still reaches hundreds of metres down the road, but what stands out is the amount of usable light filling the foreground, middle distance and shoulders at the same time.
For rural driving and backcountry travel, that's exactly what we want. Wildlife rarely appears conveniently in the centre of the road 700 metres away. It comes from the shoulder, the ditch, the tree line and the edge of your peripheral vision.
Choose the size that fits the build. The ST3301 PRO beam philosophy does the rest.
LIGHTING SEASON STARTS HERE
See It. Buy It. Have Us Install It.
Shop STEDI online across Canada or visit a participating Cap-it location to see lighting products in person, discuss your build and arrange professional installation.
FIND YOUR NEAREST CAP-IT