Exposure Sirius 11 Review: Powerful Commuter Bike Light Tested! (2026)

Here’s a bold statement: the Exposure Sirius 11 might just redefine what you expect from a bike light. But here’s where it gets controversial—while it’s not the cheapest option on the market, it packs a punch that could make its price tag feel like a steal. Let’s dive into why this compact, refined light is turning heads in the cycling world.

Why the Hype?
The Exposure Sirius 11 is a powerhouse in a small package, delivering an impressive 1300 lumens—enough to light up even the darkest rural roads. Its sleek, CNC-machined 6063 aluminium body isn’t just for show; it’s designed to dissipate heat efficiently, ensuring longevity and performance. And this is the part most people miss: despite its high output, the battery life is surprisingly robust, lasting up to 130 hours on lower settings. Perfect for commuters and adventurers alike.

Pros That Shine Bright
- Lumen Powerhouse: With 1300 lumens, it’s one of the brightest lights in its class, ideal for high-speed rides in low-light conditions.
- Intuitive Controls: Once you get the hang of it, the single-button control scheme is straightforward and efficient.
- Stunning Design: The gunmetal grey finish and intricate detailing make it as stylish as it is functional.
- Longevity: Exposure’s reputation for durability is well-earned, and the Sirius 11 is no exception.
- Fast Charging: A full charge takes just 2 hours, and it can even be used while charging with a power bank.

Cons to Consider
- Mounting Woes: The light can twist in its mount, reducing the effectiveness of the glare protector—a minor but noticeable flaw.
- Adjusting Modes on the Fly: If mounted under the handlebars with exposed cables, accessing the control button can be tricky.
- Price Point: At £120, it’s an investment, though its performance and durability may justify the cost.

Design That Blends Form and Function
The Sirius 11’s aluminium body isn’t just about looks. The 6063 alloy is corrosion-resistant and excels at heat dissipation, a critical feature for high-power lights. The machined gills further enhance this, ensuring the light stays cool even during extended use. The protruding lip over the light reduces glare, making it safer for both you and other road users.

Smart Features for Smarter Rides
With 9 modes across 3 schemes, the Sirius 11 offers versatility for any riding condition. The DayBright function, a bespoke pulse pattern, ensures you’re visible even in bright sunlight. Intelligent Thermal Management optimizes performance by reducing power if the LEDs overheat, extending both battery life and longevity.

Durability That Stands the Test of Time
Rated IK09 for impact resistance and IP67 for waterproofing, this light can handle almost anything—from heavy rain to off-road adventures. And with a 270° side visibility lens, you’re not just lighting the road ahead but also staying visible to others.

Value for Money: A Long-Term Investment
While the Sirius 11 is pricier than some competitors, its durability, performance, and smart features make it a worthwhile investment. Compared to cheaper alternatives like the Knog Blinder 1300 or Lezyne Lite Drive 1200+, the Sirius 11 offers superior build quality, brightness, and battery life. Plus, Exposure’s reputation for customer support adds an extra layer of assurance.

Final Verdict
The Exposure Sirius 11 is a top-tier bike light that combines power, style, and durability. Yes, it’s an investment, but one that pays off in the long run. The only real drawback is the mount’s tendency to twist, but this is a minor gripe in an otherwise stellar product.

Thought-Provoking Question: Is it worth paying a premium for a bike light that promises longevity and performance, or should cyclists opt for cheaper alternatives that may fall short in the long term? Share your thoughts in the comments—let’s spark a debate!

Exposure Sirius 11 Review: Powerful Commuter Bike Light Tested! (2026)
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