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BOOST-R 3 REAKT
200 Lumens | 6-70 Hours Runtime | 45g
SKU:EXPBOOSTR3RA
- In stock
The BoostR 3 is the ultimate urban “be-seen” rear light for everyday commuting. Designed for riders who demand visibility, convenience, and seamless integration, its compact body and feather-light construction keep your setup clean and
unobtrusive.
Description
With an upgraded output of 200 lumens in flash mode and 75 lumens in constant mode, the BoostR 3 is brighter and more effective than ever. A larger battery delivers up to 70 hours of runtime, ensuring reliable, long-lasting performance for daily commutes or multi-day adventures. Combined with a precision-engineered lens system and our signature DayBright pulse pattern, you remain highly visible in all riding conditions from busy streets to open roads.
Advanced Reakt technology takes visibility even further by automatically adjusting brightness to suit ambient light. Enter a tunnel and it dims to preserve battery life; exit into bright daylight and it boosts output for optimal contrast. Reakt also includes an automatic brake light, flaring under deceleration for added safety in both constant and flash modes.
For group riders, Peloton mode prevents dazzling those behind you. When it detects another rider’s light close behind, it dims automatically, returning to its previous setting once they move on.
A specially designed lens and body configuration provide exceptional side visibility, helping you stand out in busy urban traffic. The 8° collimated spot lens delivers impressive long-range throw, giving you greater clarity and control compared to other products with similar outputs.
Crafted from CNC-machined 6063 aluminium and anodised in our iconic gunmetal grey, the Boost R 3 is built to endure. Rated IP67, it easily withstands harsh winter conditions without compromising performance. Despite this robust construction, the Boost R 3 remains lightweight at just 45g, ensuring premium durability without added bulk.
The BoostR 3 combines smart technology, exceptional runtime, and powerful visibility everything you need to stay seen, stay safe, and ride with confidence
Technologies
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
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.
ReAKT Technology
Rear lighting that flares up automatically under braking. It can also intelligently adapt to the surrounding ambient light conditions to maintain maximum contrast and visibility, for example brightening for street lit areas and moving into sunlight from shade.
Peloton Technology
Enables the rear lights to automatically dim down when the front light of the rider behind is detected , preventing dazzling in a chain gang, it then flares when at the back of the pack for maximum safety.
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.
 BOOST-R 3 REAKT£100.00 | |
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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!
Customer Reviews
Overall rating: 5.0 / 5 from 43 reviews.
They just do everything you need to no gimmicks. Just perfect. Thanks.
I brought this one for my son. I already own three! Fitted to all my mountain and gravel bikes. I use the saddle bracket to keep out of harms way with a dropper. Fit and forget (except for occasional charge) .
Lightweight and bright, ideal for a rear light. I was looking for something I could mount on the back of a pannier rack, as there’s no seat post room on my bike a combined with the go pro mount and a rear-pannier-go-pro bracket this is ideal. Double clicking the button to turn on is much easier compared to the similar bodied Exposure Link mk 1 or 2 helmet light I’ve had for years (which has always been a bit tricky with gloves on) so that’s a good improvement for me.
Little light that packs a great big punch, started with 2nd Gen 6 pack then the diablo for my helmet, or bars on my commuter. A service every 4 -6 years keeps them running sweet and batteries full powered, finally a rear light that has the intelligence I wanted.
perfect rear light. dependable and serviceable. expensive but better value as they last so long. been using exposure lights since 2009 and they have never let me down
Bright, USB C rechargeable, robust, what more do you want!! Perfect
Great light! Super bright, battery life is excellent! Love the different modes.
Amazing build quality! super bright en much technology in a tiny light
Great little light that delivers so much. Love it.
It’s my second Exposure light. Great quality products and so good to buy British. Was looked after very well by the chaps at Ard Rock. Now ride all the time with an excellent rear light and feel safer for it.
Cycling the outer Hebrides
Cracking wee light!
Love the product!
nice and bright
Excellent light and visibility. Ideal for use day and night.
Significant improvement from the Blaze Mk 2 that this replaces for me (the Blaze fell off its mount & was lost!); the twist locking mechanism onto the mount is solid plus i've backed it up with a lanyard (which is also well designed). The charge port is also a big improvement on the Blaze which was fiddly to close & had a tendency to pop open allowing water ingress. Run time is surprisingly durable too. Excellent!
Great battery life and visibility. Lasted through the whole northern summer night!
I wanted a rear light with a long battery life and this excellent light is pefect!, very good daytime brightness also 10/10
I have two bikes. An Allied BC-40 and my Pinarello Grevil that serves as my road/gravel/monster gravel bike depending on my set up. The Boost REAKT is perfect because it’s one light that works perfectly on a 1 hour coffee spin, a 3 hour interval session, or a 10 hour adventure across road, gravel, and singletrack. Regardless of my riding plan, I only need one light.
very good product !
Great light super bright with long battery life.
Awesome, powerful and light! Attached this little bad boy to my gravel right for general daylight and occasional dawn/dusk ride. Easy to operate, neat functions and well made - everything I have come to expect from Exposure lights!
Best rear light you can buy.
Quality light, instructions easy to follow. Arrived on time and was well packaged. Haven’t really tried it out when it’s been really dark yet however what I have seen it’s bright. Well worth the money. Like the mounting system easy to fit and the light is quick to drop over to my other bike.
I used this rear light on my very recent LEJOG cycle. I think the brightness coupled with the flash function made me much more visible and so contributed to my overall safety in no small way. It has great longevity in terms of battery life and it fits well into the socket that sat on the back of my saddle. It is a great addition to my cycling kit.
Very well-made and functional bicycle lamp. The lamp's features are consistent with the description on the website.
Outstanding light! USB-C, longer battery life and the famous Exposure Light reliability.
Had a previous model of the same light ... was good but the capacity of the battery on this version improves on what was a good light
Ended up picking up two of these and the under the saddle mount, they tuck away so nicely under the saddle. The battery life is absolutely insane I can ride with it on the whole time for about 2 weeks (I ride about 10-14 hours a week) and not have to charge it. Obviously that varies with the mode you're using. I loved them so much I ended up picking up the race 19 and the link plus 5 for an ultra I'm doing.
Great light , kept me visible during the dark winter and now equally visible during the daylight hours . Fits Great under the seat with the additional mount , it's used daily without any problems
Very easy to attach to the bike and instructions really simple for selecting and using different modes. I couldn't be happier.
Excellent product and communication. Dispatched very fast. Highly recommended !
Good battery life and solid build
Another brilliant bit of Exposure kit Battery life is excellent and visibility great even on lowest brightness
Got it on time and light was brilliant! I love it and recommend it to other who’d need a rear bike light.
The brake sensing works perfect. The lights are very light I have no issue carrying it in my pocket when i park my bike. Very high quality feel to them, well engineered, I don’t. And they’re really bright, but not in the way that annoys others. I’ve bought lots of lights over the years and this one wins by far.
Excellent nice and bright with good flash and battery time. The braking light function seems to work well as have had a couple of people saying they didn’t realise that bikes had brake lights
Top notch design, aesthetics and functionality. Well done.
For a small light, this unit is very impressive indeed. I bought two for both my wife and I and have seen from travelling behind my wife - any driver who cannot see this diminutive powerful light really should not be driving is my conclusion. The light can flash pulsate or be a constant and it learns to adjust one you have ridden for a short distance. All I know is it works and drivers can see me and my wife when we are using the roads. This light is well made and will last a long time is my impression, having bought many bike lights over the years ( starting with the old Eveready bike lamps during the 1970’s to today’s super powerful lights more powerful than car lamps of the same era. Definitely recommend from my experience.
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