In collaboration with renowned moto‑vlogger Man With Bike, we walk you through the full wiring, installation, and real‑world lighting comparison of our new D03 series 3.5″ LED spotlights.
Man With Bike is a seasoned motorcyclist who’s traversed multiple European countries on two wheels. Yet his 2024 Honda Transalp XL 750’s stock headlamp just couldn’t keep up—its low brightness made night rides hazardous, especially when wildlife darts into the road.
After upgrading to the Colight D03 series, those concerns vanished, thanks to its compact form factor and blistering light output.
Colight D03 Highlights
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Size: 3.5″ diameter, sleek for easy mounting
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Power & Output: 70 W per set, up to 7,700 lm total
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Optics: TIR‑Lens for ultra‑focused beam
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Modes:
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High‑Beam – Pure white, long‑throw illumination
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Strobe (“Flash Bang”) – Rapid burst for signaling
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Amber Backlight – Yellow glow for fog/rain visibility
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Step-by‑Step Installation Guide
1. ACC Power Connection
Two options to energize the D03 on 2024 Honda Transalp XL 750:
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Direct Battery Tap: Connect the ACC lead directly to the positive battery terminal.
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Auxiliary Port: Plug into your bike’s existing accessory port.
Tip: After the wiring is completed, fix the line and place it on the side of the car base to avoid clutter.
2. Horn & Flash‑Bang Wiring
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Routing: Run a separate harness from the headlamp area, under the seat, to the horn button or flash‑bang switch location.
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Polarity: On Honda models, the horn line uses black = positive green=impositive.
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Switch Placement: Mount a handlebar switch for one‑touch control of high beam, strobe, and amber backlight.
Note: The demo video skips the flash‑bang hookup; add it if you want strobe capability.
3. Cable Management
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Bundle and zip‑tie all connectors.
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Tuck loose cables away from moving parts and heat sources.
Testing the D03 Series
Flash‑Bang (Strobe)
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Activation: Press and hold the horn button for 1 second.
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Modes:
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Synchronized Strobe – both lights flash together
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Alternating Strobe – left/right flash in turn
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High‑Beam Performance
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Beam Focus: Ultra‑Spot, motorcycle‑optimized
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Output: 70 W per set, rated 7,700 lm
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Range: Illuminate roadside objects and potential wildlife threats well in advance
Amber Backlight
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Use Case: Improves visibility in rain, fog, and dust
Accessory: Combine with the D03 silicone/PC yellow lens for maximum effect
Before vs. After: Stock Headlamp Comparison
Result: Riders report dramatically improved clarity, reduced eye strain, and far superior reaction time when spotting obstacles or wildlife at night.
Conclusion
If you’re in the market for a versatile, high‑performance spotlight that won’t overwhelm your bike’s styling, the Colight D03 series is a must‑see—especially when vetted by Man With Bike. Whether you’re a newcomer or a veteran rider on a 2024 Honda Transalp XL 750, this guide will help you master installation and experience the true power of Colight D03.
Upgrade here and enjoy 15% off with coupon code: DMJ15
Ride safer. Ride brighter with Colight.