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Compact black aluminium bike light with USB-C port and handlebar mount

Olight RN 400 Bike Light 400 Lumens USB-C IPX7 Black

SKU CH-JH97-DCXG7

A 400-lumen USB-C rechargeable bike light with anti-glare optics, IPX7 waterproofing and a quick-release handlebar mount for bars from 28.6 to 35.0 mm

  • SizeMedium
  • ColorSilver
  • MaterialAluminum
  • FeaturesHandlebar Mount, waterproof, Battery Powered, true, lithium_
  • Mounting TypeHandlebar Mount
  • Anti-glare beam directs light downward for oncoming traffic safety
  • Lock function prevents accidental activation with three-second hold
  • Battery indicator shows green above 21% and red below 20%
  • USB-C fast charging reduces downtime between rides
  • IPX7 rating withstands immersion up to one metre depth

Product Purpose

The Olight RN 400 is a compact cycling headlight delivering up to 400 lumens for urban roads and daily commutes. A USB-C port enables fast charging, while an anti-glare lens directs the beam downward to protect oncoming traffic. IPX7 waterproofing handles rain and temporary immersion up to one metre.

Who It Suits

Commuters and city riders who want a lightweight, handlebar-mounted light with simple quarter-turn attachment and clear battery indicators will find it practical. Riders needing longer maximum runtime than seven hours or a beam pattern optimised for high-speed off-road descents should consider other options.

Capacity and Headroom

At full 400-lumen output the light runs for approximately seven hours and throws to 89 metres or 292 feet. Lower modes extend battery life, with the indicator showing green from 21 to 100 percent, red at 11 to 20 percent, and flashing red below 10 percent. The fixed quarter-turn mount fits 28.6 to 35.0 millimetre handlebars and cannot be angled after installation.

Highlights

  • Anti-glare beam directs light downward for oncoming traffic safety
  • Lock function prevents accidental activation with three-second hold
  • Battery indicator shows green above 21% and red below 20%
  • USB-C fast charging reduces downtime between rides
  • IPX7 rating withstands immersion up to one metre depth

Specifications

BrandHollywood Racks
SizeMedium
ColorSilver
MaterialAluminum
FeaturesHandlebar Mount, waterproof, Battery Powered, true, lithium_polymer, 1
Mounting TypeHandlebar Mount

Questions about this item

What handlebar diameters does the included mount fit?

The supplied quarter-turn mount accepts handlebars from 28.6 mm to 35.0 mm and uses the four silicone straps for a secure, non-adjustable fit.

How does the anti-glare lens affect oncoming traffic when I ride on shared roads?

The TIR optic directs the 400-lumen beam downward so it illuminates the road ahead without blinding drivers or pedestrians coming toward you.

How do I confirm the light is charging and see the remaining battery level after a ride?

Plug the USB-C cable in; the indicator shows green for 21–100 %, red for 11–20 %, and flashing red for 1–10 % when you short-press the power button.

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