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Exposure Lights Sirius Mk10 & TraceR Mk2 ReAKT Light Set

Exposure Lights
Sirius Mk10 & TraceR Mk2 ReAKT Light Set

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Product ID: 1635922

Exposure Lights Sirius Mk10 & TraceR Mk2 ReAKT Light Set

The Exposure Lights Sirius Mk10 & TraceR Mk2 ReAKT Light Set is a solid choice when you not only want to be seen on the roads but also need to see the way ahead. With a front maximum of 900 lumens, you'll be able to pick out all the details and turns on dark country lanes, and the DayBright pulse mode makes this light just as useful during the day, cutting through distractions to ensure other road users are aware of your presence. 

The rear emits a powerful 75 lumens, or up to 120 using ReACT technology, which is an intelligent system that means it flares under braking and adapts to ambient light conditions; brightening in well-lit areas and dimming when you move into darker or shady zones. 

Both lights are constructed from strong anodised aluminium and have IP65 water ratings. Intelligent Thermal Management means that if the LEDs start to overheat, power is reduced until they've cooled, and a traffic light Fuel Gauge ensures you're always aware of roughly how much battery is remaining. 

In the box

  • Sirius Mk10 front light
  • TraceR MK2 ReAKT rear light 
  • QR seatpost mount
  • QR handlebar mount
  • 1 x Micro USB Charge Cable
  • 1 x USB Charge Cable
  • QS Guide


  • Handlebar-mounted front light / rear light set
  • Anodised 6063 aluminium body
  • Sirius offers 240° front and side illumination
  • DayBright pulse pattern
  • TraceR with ReACT technology flares up under braking. Adapt to the surrounding ambient light conditions to maintain maximum contrast and visibility
  • IP65 water rating
  • Cable-free design
  • Intelligent Thermal Management
  • Optimum Mode Selector
  • Fuel gauge
  • USB charging
  • Light Source: 1 x XPL2(W3) LED (Sirius) / 1 x XPE-R (TraceR)
  • Maximum lumens: 900 (Sirius) / 120 ReAKT Flare, 75 red (TraceR)
  • Maximum run time: 36 hours (Sirius and TraceR)
  • Minimum run time: 2 hours (Sirius and TraceR)
  • Battery: 3500 mAh Li-ion (Sirius) / 700 mAh Li-ion (TraceR)
  • Recharge time: 4 hours (Sirius) / 3 hours (TraceR)
  • Length: 110mm (Sirius) / 57mm (TraceR)
  • Head diameter: 28mm (Sirius) / 28mm (TraceR)
  • Back diameter: 27mm (Sirius) / 19mm (TraceR)
  • Manufacturer claimed weight: 84 grams (Sirius) / 35 grams (TraceR)

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