I’ve had a strada for 15 years but the Sirius is smaller and brighter (in max mode). Fits above a bar bag for the commute. Usual exposure build quality.
Sirius 11
1300 Lumens | 1 - 130 Hour Runtime | 90g
SKU:EXPSIRIUS11DBGMB
- In stock
Introducing the Sirius 11, the ultimate companion for your daily rides and the perfect fusion of output, weight, and endurance. Every element of the 11 has been meticulously engineered to deliver unmatched performance for riders who demand the very best.
Description
Weighing in at just 90 grams, the 11 has been designed with weight efficiency in mind, without compromising on durability or quality. It retains our signature 6063 aluminium bodywork, precision CNC machined to perfection and finished in our iconic gunmetal grey hard anodised coating. This sleek yet hard-wearing exterior ensures the 11 remains both lightweight and exceptionally robust, built to last.
Inside, a purpose-driven architecture enhances thermal management, allowing for improved heat dissipation and consistent performance. This design enables the 11 to deliver greater output while maintaining reliability, efficiency, and longevity.
The specially designed lens and body configuration provide outstanding side visibility, helping you stand out in urban traffic. The 8° collimated spot lens gives the product exceptional led throw meaning you have greater long-range clarity compared to other product with similar outputs, illuminating the path ahead with precision and control.
Powered by next-generation battery technology and an upgraded PCB design, the 11 pushes performance boundaries even further. The light now delivers a powerful 1300 lumens of output and an impressive 130-hour maximum runtime, so you can ride for weeks without needing to recharge. When it’s time to power up, USB-C fast charging gets you back on the road in just over two hours, compatible with most modern power banks for ultimate convenience on the go.
Built to withstand the harshest conditions, the Sirius 11 meets IK09 impact resistance and IP67 water ingress standards ensuring it performs flawlessly through rain, mud, and rough terrain. From daily commutes to nighttime adventures, this light is ready for anything.
Designed for those who refuse to compromise, it delivers power when you need it most and durability that lasts ride after ride.
Key Features:
· 1300 Lumens
· Up to 130-hour runtime
· 270° side visibility for enhanced safety with a tight 8° spot lens
· Lightweight CNC-machined aluminium body
· USB-C fast charging for quicker recharges
· 9 programs to choose from allowing you to tune the runtime and output balance perfectly for your ride
· Stay visible. Stay safe. Ride with confidence
Most Popular Mounting Options
Technologies
USB-C
USB-C PD charging enables one cable convenience and improved charge times by up to 66%. Now with the added benefit of being charged from portable power banks for maximum versatility.
Optimised Mode Selector
Various programs in the lights can easily be selected to offer a choice of run times and modes so you can find the right one for your ride, be it an all-night adventure or an intense blast.
Intelligent Thermal Management
Patented circuitry within the light will reduce power to the LEDs, if they go beyond the optimum temperature, keeping the light as efficient as possible to maximise output and battery capacity. Once the light has cooled, the power is automatically restored.
Day Bright Technology
Bespoke pulse pattern designed for daylight use which is more conspicuous than a regular pulse and visible over a kilometre away, even in the brightest conditions. DayBright mode will you noticed. Be Seen be Safe
 Sirius 11£120.00 |  Strada Mk12 RS AKTIV£325.00 |  Strada Mk12 SB AKTIV£375.00 |  BOOST 3£80.00 | |
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Customer Reviews
Overall rating: 4.6 / 5 from 121 reviews.
Works great. The seal on the charge socket is better than the previous version
A great compact light, very bright when needed, but even the lowest setting is good enough for the road. Off-road as long as it's not too extreme it seems to be fine, the middle setting which still gives 3 hours is enough for light gravel/towpaths
Great piece of kit. Top quality and fast delivery
Amazing 🚲
Really solid light. Well built and bright!
Fits my flat handlebar perfectly with the flat bar mount. Good battery life on flash mode
This is my 5th Exposure light, this one bought specifically for bikepacking! It's perfect- light and bright with excellent battery life. Recommended 👌
Great light to lighten up the daily commute as the daylight hours get shorter and shorter. Easy to use, love the side access mount.
not tried it for real yet. well made and a strong light. I will update this when the longer nights come in.
I looked for a light light for my road bike with is light enough to leave it on every day while still being light enough to ride comfortable for some hours during night. I love the light so much I deliberately doing night rides ... just because I can use the Sirius 11 then. (For serious long night rides I add a flash light on my helmet).
Lights the way and it’s lite. Nice addition for my road bike. I use Toro for MTB; again brilliant (in both senses).
Great light which is easy to charge, set and fit. Packs a punch for its size!
Light, bright, lasts a long time and charges quickly via a USB-C
very well made, beautiful product. Works well. Would reccomend
Perfect for day and night and as always top quality, lots of settings and can be super bright if needed.
Léger, esthétique et efficace.
Fabulous light, very bright for size and fits my set up perfectly
Very powerfull light given its size and weight. Very sturdy alluminum body. The only negative part is cumbersome light mode switching. You have to remember how long to press the single button and how many times. No so easy when riding 50+ hour ulta race.
Very light device and powerful
Great product
Exactly what I wanted thanks
Race across France 2026 with Sirius 11 ! Excellent !
WoW
Powerful and does the job
Great as a be seen daytime light, exceeded my expectations for night use on bridleways. Feels like a quality product.
Bought last minute as a back up for Pan Celtic race. Just as well when my dynamo seized. Mounting the Sirrus on my aero bars using a 76 projects clamp and a go pro style mount, was the perfect solution. To be frank I could have just used this it was so good. I could flip the mount up or down as required and tuck it in against my front bag. Used the low setting when dark and flash in daylight. Super happy with this light. Recommended.
Works as intended :)
Perfect balance of low weight and sufficient for the short duration of darkness on the clear night. I placed on a 4 hr setting and together with the blaze and helmet mounted link plus was the perfect amount of light for single night on the Pan celtic intro 👌
Exposure lights are always great. I’ve had them for over 10 years. This is little light replaces the old joystick light I used to have at the front of my bike. It’s twice as powerful almost the same size and last twice as long. It’s a great little design that will last me at least another 10 years.
So far so good. Took a little time to get used to switching modes but love it
As a backup light, I didn’t need to use it. It is ready to mount on my bars if my primary exposure failed or ran out.
Really bright, works great in country side area with no light.
Eclairage light et efficace. Top pour les sessions du soir.
Brilliant strong little light, really bright in a little light. This light is not to heavy to have on aero bars or on helmet, unlike some that after awhile become really heavy on your head. It has a long battery life and is super easy to recharge. When following the instructions it’s easy to set up the setting what you want the light to come on with each time. All in all another great light from this brand.
Figured out a way to mount to my Black Inc. out front mount—only possible due how freaking light this light is!
Great, solid quality light as expected by Exposure
Very speedy purchase and delivery. Well packaged. Works very well and is very bright for such a small light. I have two of the mk11 and one mk10 as well as my big road light. (I have several bikes in several locations). I would highly recommend these lights.
Sin ninguna duda las Mejores luces y servicio del planeta, volveré a comprar otras para cada bicicleta que tenga
Just what I needed for the ride home from the pub after our regular wednesday night chain gang ride.
Built to last, serviced to endure
We offer an extra year warranty to all purchases made through our site. This means you will have 3 year warranty on all of our lights and the LED’s inside are covered by a lifetime guarantee! Ensuring peace of mind with every purchase.
Our lights are designed to last a lifetime, so we carry out servicing and repairs on lights well beyond the warranty period - simply get in touch if you ever need us - we've got you covered!
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