BOOST DB + BOOST-R ReAKT Pack - Ultimate Sports Engineering Ltd

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Technical Specifications:

LEDs 1 x White XPL2|1 x Red XPE-R
IP Rating IP65
Max Lumens Front:325|Rear:80
Battery 1400 mAh Lithium Ion
Runtime 6 - 48 hours
Charging Time 4 Hours
Weight 45g (each)
Material Anodised 6063 Aluminium
Length 66mm
Head Diameter 28mm
In The Box BOOST DB & BOOST-R ReAKT, Seatpost Mount, Handlebar Mount, 2 x Micro USB Charge Cable, QS Guide



The definitive, lightweight front and rear light set for urban commuting or daytime visibility. Utilising the form of the Trace and Trace R lights the BOOST and BOOST-R RA offer more Lumens out front, 325 or twice the run time, up to 48 hours, to safe guard the rear; USB charging for convenience, a choice of 6 burn times, DayBright pulse pattern and a specific lens design to ensure that the one LED has the power to penetrate through the urban traffic and side illumination for 360 ̊ visibility from over 1 kilometre away, with the BOOST-R RA packed with ReAKT and Peloton technology to make sure this front and rear pack is ready for any activity day or night.

In the box:BOOST DB & BOOST-R ReAKT, Seatpost Mount, Handlebar Mount, 2 x Micro USB Charge Cable, QS Guide.

Out Of Stock

Quick Stats:

6 - 48
Hours Runtime
325 | 80
Lumens Measured Output
45 | 45
Grams Weight



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.


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.


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.

Fuel Gauge Fuel Gauge

Using a traffic light system remaining runtime is easily monitored at a glance so you’re not caught out. The colour feedback is also used for mode selection, before defaulting back to runtime.

Daybright Daybright

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



Specifications BOOST DB BOOST-R ReAKT
Output 325 lumens 150 ReAKT Flare, 80 lumens red
Weight 45grams 45grams
Burntime Min 6 hrs Max 48 hrs Min 6 hrs Max 48 hrs
Battery Capacity 1400 mAh Li ion 1400 mAh Li ion
Dimensions (mm) Length - 66, Head - 28, Back – 22 Length - 66, Head - 28, Back – 22
LED 1x XPL2 1x XPE-R


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