Exposure Sirius Mk4 USB Rechargeable Front Light

Product Code: 145151
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Product Description

The Sirius is built to excel the road. The Sirius will keep you safe and seen for miles with; constant and pulsing modes, long battery life, USB charging and OMS for adapting burntimes. Every Sirius is hand built and individually tested in the UK.

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  • Smart Port Technology +
  • Cable Free Design
  • Intelligent Thermal Management
  • Optimum Mode Selector
  • Fuel Gauge
  • Hand Made in the UK



USB Rechargeable: Exposure Lights incorporate USB charging for easy charging on the fly.

Smart Port +: SPT+ enabled lights automatically recognise accessories allowing you to power additional front and rear lights, use the Remote Switch and charge USB devices on the move.  

Cable Free Design: The primary design feature of Exposure Lights, Cable Free Design removes the hassle of cables and straps utilising the superb range of brackets for speedy, rock solid attachment.

Intelligent Thermal Management: Controlling the temperature of the LEDs is important in ensuring that the lights remain as efficient as possible. Patented technology in the circuitry of Exposure Lights stop the light from heating up to a point where the light loses power due to the elevated temperature.

In The Box:

  • Sirius Mk4 QR handlebar bracket
  • USB charge cable
  • Quick Start Guide


Technical Data:

  • Run Time: High -2hr, Low - 36hrs
  • Lumens: 500 Battery: 2,600mAh
  • Charge Time: 4hrs
  • Dimensions: L - 100mm x D - 28mm
  • Weight: 80g