Exposure Sirius Mk9 Daybright bike light review

Considered the entry into 'proper' road lights the Exposure Sirius Mk9 Daybright bike light is powerful, high quality and a bit of an investment.

Exposure Sirius MK9 Daybright bike light
(Image credit: Exposure)
Cycling Weekly Verdict

The Exposure Sirius Mk9 Daybright bike light is a wonderfully tactile and superb piece of functional engineering at its finest. Power output and beam pattern and it's hard to beat. Add in the Sirius' versatility and it represents almost the complete package, but for some it will cost prohibited..

Reasons to buy
  • +

    Build quality

  • +

    Beam power and pattern

  • +

    Versatility

Reasons to avoid
  • -

    More expensive than many of its rivals

  • -

    Bracket won't fit aero bars as standard

You can trust Cycling Weekly. Our team of experts put in hard miles testing cycling tech and will always share honest, unbiased advice to help you choose. Find out more about how we test.

The Exposure Sirius Mk9 Daybright bike light is the gateway light in the brand's road range and is aimed at all road users. It’s by far the smallest light in a comparison with similar power lights in terms of physical size and weight but it manages to pack a punch far better than all of its rivals.

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