If you prioritize a road-style low beam with a defined cutoff and more control over your lighting pattern, Apex is worth a closer look. If you prefer a simpler two-mode system with a high beam that combines forward reach and wider illumination, D09 Pro may be the better fit.
The COLIGHT Apex and D09 Pro are motorcycle auxiliary light series designed for riders who want better visibility and more control over their lighting setup. Apex is available in 3.5-inch and 4.5-inch sizes, while the D09 Pro 4.5-inch series offers three DRL configurations: white, amber, and white & amber.
This comparison focuses on the Apex 4.5-inch and D09 Pro 4.5-inch White & Amber DRL versions. Both feature high and low beams, dual-color DRLs, a dedicated wiring harness, and four-level main-light dimming. Their biggest difference is the beam pattern: Apex offers three selectable beam modes, while D09 Pro combines its high beam and combined-beam functions into one mode.
Apex 4.5" vs D09 Pro 4.5": Key Differences
| Feature | Apex 4.5" | D09 Pro 4.5" White & Amber DRL |
|---|---|---|
| Optical system | TIR | TIR |
| LED chips | 7 | 9 |
| Beam modes | Low, High, Combo | Low, High (combined beam) |
| Low-beam cutoff | Defined horizontal cutoff | No defined cutoff |
| White DRL | Dynamic welcome mode | Static |
| Amber DRL | Yes | Yes |
| Main-light dimming | 4 levels: 100%, 80%, 60%, 40% | 4 levels: 100%, 80%, 60%, 40% |
| Independent main light and DRL control | Yes | Yes |
| Strobe modes | 2 | 2 |
| Passing-light trigger | Supported | Supported |
| Horn-triggered flashing | Supported | Supported |
| Wiring harness | Included | Included |
| Tubular mounting brackets | Included | Sold separately |
| Front mask | Yellow and black hollow masks | Yellow mask |
| Lamp dimensions | Same as D09 Pro 4.5" | Same as Apex 4.5" |
Both models have similar power ratings, but their different optical layouts produce different beam patterns. The number of LED chips alone does not determine brightness or beam performance.
1. Beam Patterns: The Main Difference
Both lights use TIR optics, but they arrange their beam functions differently.
Apex 4.5": Three selectable beam modes
Apex offers three modes:
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Low Beam: A wide beam with a defined horizontal cutoff, designed to help control light above the cutoff and reduce glare toward oncoming traffic when correctly aimed.
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High Beam: Focused illumination for longer-range visibility.
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Combo: Combines low- and high-beam output for broader coverage and forward reach. Activate it by double-pressing the main-light control.
The defined-cutoff low beam is a key advantage for riders who frequently use auxiliary lights on roads with oncoming traffic. Correct installation and aiming are still essential.
D09 Pro 4.5": Two selectable beam modes
D09 Pro offers two modes:
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Low Beam: Wide illumination without the defined horizontal cutoff found on Apex.
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High Beam: Combines spot and flood illumination, effectively serving as the combined-beam mode.
Unlike Apex, D09 Pro does not have a separate third Combo mode. Its high beam provides the combined lighting effect in one selection.
Which beam setup is right for you? Choose Apex if you want a cutoff-style low beam and three distinct lighting modes. Choose D09 Pro if you prefer a simpler two-mode setup with combined illumination on high beam.
2. DRL Design: Dynamic vs Static White
Both versions offer white and amber DRL, but the white-light startup effect differs.
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Apex 4.5": The white DRL features a dynamic welcome mode when the light is powered on.
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D09 Pro White & Amber DRL: The white DRL is static, while the system also provides amber DRL.
Both models allow independent control of the main light and DRL. Neither model supports DRL dimming; the four-level dimming function applies to the main light source.
If a dynamic white startup effect matters to you, Apex has the advantage. If a static white DRL with a dual-color configuration meets your needs, D09 Pro remains a strong alternative.
3. Controls and Wiring: Similar Features on Both Models
Both lights come with a dedicated wiring harness and support:
- Independent main-light and DRL control.
- Two strobe modes.
- Four-level main-light dimming: 100%, 80%, 60%, and 40%.
- Passing-light activation.
- Horn-triggered flashing.
This means you do not need to choose Apex simply to get these control functions; D09 Pro supports them too.
Both models can be adapted for integration with HEX ezCAN. However, we recommend using the wiring harness supplied with the light to retain the intended functionality and avoid potential warranty issues associated with modified wiring. Check the applicable warranty terms before making any wiring modifications.
4. Installation and Included Accessories
Apex 4.5-inch and D09 Pro 4.5-inch have the same lamp dimensions, making both suitable for many adventure motorcycles and larger motorcycle builds.
The main difference is the mounting hardware and front mask included in the package.
| Included item | Apex 4.5" | D09 Pro 4.5" White & Amber DRL |
|---|---|---|
| Wiring harness | Included | Included |
| Tubular mounting brackets | Included | Purchased separately |
| Yellow hollow front cover | Included | Included |
| Black hollow front cover | Included | Not included |
Apex is more convenient if you want tubular mounting brackets included with the lights. With D09 Pro, you can choose from three compatible tubular bracket options separately to suit your mounting setup.
Before ordering, confirm the bracket size and available clearance around your crash bars, fairing, and other components.
5. Which One Should You Choose?
Choose Apex 4.5" if you want:
- Three beam modes, including a separate Combo mode.
- A defined-cutoff low beam.
- A dynamic white DRL welcome effect.
- Tubular mounting brackets and both yellow and black hollow front masks included.
Choose D09 Pro 4.5" White & Amber DRL if you want:
- A straightforward two-mode lighting setup.
- Combined spot-and-flood illumination on high beam.
- Static white DRL and amber DRL.
- The flexibility to select your mounting brackets separately.
Both models share TIR optics, similar power ratings, four-level main-light dimming, two strobe modes, passing-light activation, horn-triggered flashing, and an included wiring harness. Your decision should therefore focus primarily on beam pattern, DRL startup appearance, and included mounting accessories.
Frequently Asked Questions
Is Apex 4.5" brighter than D09 Pro 4.5"?
Their power ratings are similar, but brightness cannot be determined by wattage or LED chip count alone. Apex uses seven LED chips, while D09 Pro uses nine. Their optical layouts and beam patterns differ, so compare beam-test images captured under the same conditions for a more meaningful assessment.
Does D09 Pro have a cutoff low beam?
No. Unlike Apex, D09 Pro does not have the same defined horizontal cutoff in its low-beam pattern.
Can I dim the DRL on either model?
No. The four-level dimming function applies to the main light source, not the DRL.
Can both models work with HEX ezCAN?
Both can be adapted for HEX ezCAN integration. COLIGHT recommends using the supplied wiring harness to maintain the intended functions and avoid potential warranty issues from wiring modifications.
Are the two models the same size?
Yes. Apex 4.5-inch and D09 Pro 4.5-inch share the same lamp dimensions. Their package contents differ, particularly the tubular mounting brackets and front masks.
Final Verdict
The main difference between Apex 4.5-inch and D09 Pro 4.5-inch is their beam configuration.
Apex is the better fit for riders who want a defined-cutoff low beam, three selectable beam modes, and a dynamic white DRL welcome effect. It also includes tubular mounting brackets and yellow and black hollow front masks.
D09 Pro White & Amber DRL is a strong choice for riders who prefer a simpler two-mode system. Its high beam combines spot and flood illumination, and its mounting brackets can be selected separately.
Both deliver extensive control functionality, including four-level main-light dimming, two strobe modes, passing-light activation, and horn-triggered flashing. Choose according to the beam pattern and installation setup that best match your motorcycle and riding needs.
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