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Exposure Sirius MK5

  • Best quality 550 lumen commuter light
  • Machined aluminium - only 81g
  • USB rechargeable front bike light
£99.99In Stock

Exposure Sirius Mk5

The Exposure Sirius Mk 5 is a high power front bicycle light that makes British hand machined lighting expertise more accessibly priced.

The lamp's 550 lumen output is designed for urban use in that it will definitely get you seen without blinding oncoming traffic. Although it would be underpowered as a solo mountain bike light, it will light your way when you take the odd shortcut along unlit towpaths.

Battery Power
The lamps 2,900 mAh rechargeable battery offers variable burn times from 2 hours at 550 lumens to 36 hours at 30 lumens. As is the Exposure way, the battery is self-contained inside the lamp's case. Every Exposure battery is fit for around 1,000 charges and is then replaceable.

Optimum Mode Selector
OMS makes it easy to select how long a burn time you need for the ride and adjusts the power output to that level. OMS therefore helps ensure an optimal balance of run time and output.

Fuel Gauge
The fuel gauge changes colour from green to amber to red to make it easy to keep an eye on the battery's charge status.

USB cable rechargeable
Supplied with USB cable charger. Charge time: 3 hours.

Hand made in the UK
Everything about this lamp exudes Exposure's trademark CNC-machined quality. You can tell by the fact that this is the fifth generation version of this lamp that the Sirius is one highly evolved bicycle light.

Flexible Mounting
Supplied with handlebar mount. Helmet mount available as optional extra.

Intelligent Thermal Management
Patented circuitry protects the LED from overheating so neither the lamp's output nor its longevity is compromised.

Compact and lightweight
106mm long by 28mm diameter, Exposure tell us the Joystick Mk11 weighs just 81g.

Edinburgh Bicycle support recycling electrical equipment.


Our suppliers reserve the right to change specifications and prices without notice. Edinburgh Bicycle Cooperative will do all it can to maintain prices and specifications on this web site, however we do reserve the right to change specifications and prices without notice. Similarly, despite the wonders of modern computers, it is realistic to expect the colour of any item bought to differ subtly from the image online.

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