Six Pack SYNC Mk4 - Ultimate Sports Engineering Ltd

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Technical Specifications:

LEDs 6 x White XPL2(W3)
IP Rating IP65
Max Lumens 3750 (Reflex 5250)
Battery 17,000 mAh Li-Ion
Runtime 2 - 36 Hours
Charging Time 8 Hours
Weight 386g
Material Anodised 6063 Aluminium
Length 118mm
Head Diameter 61mm
In The Box Six Pack SYNC MK4, SYNC Remote, QR Handlebar Bracket, Fast Charger, QS Guide

Six Pack SYNC Mk4


The Sixpack SYNC now with a wider beam pattern combined with the same penetrating throw and an enhanced 5250 of measure lumens obliterates the dark to define the terrain in its path. With SYNC the Sixpack can be programmed to the riders’ personal requirements by connecting the light to the new updated APP to ensure that it meets every desired requirement at the touch on the wireless remote control. REFLEX++ still selectable to have the right lumens of the right terrain automatically.

In the box: Six Pack SYNC MK4, SYNC Remote, QR Handlebar Bracket (31.8mm - 35.0mm), Fast Charger, QS Guide.

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Quick Stats:

2 - 36
Hours Runtime
3750 (Reflex 5250)
Lumens Measured Output
Grams Weight


Reflex++ Reflex++

Reflex automatically adjusts the light to provide boosted output when riding hard and fast then intuitively dimming for the slower sections such as climbs. This is all to optimise battery capacity, to provide extra light when needed and save it when not required.

Reflex achieves this by using data from 3D digital accelerometers including gyroscope and thermistors. It continually analyses the data to make seamless adjustments to benefit the rider, probably better than the rider can. In reality it is a form of artificial intelligence. The selected run time will be achieved by averaging the output over the period.


SYNC allows you to control the light with a remote switch and to make custom programs in the Exposure SYNC App, additionally both helmet and handlebar lights can be simultaneously controlled with a single remote via Bluetooth connectivity. App is available in both iOS and Android platforms.


Smart Port+ enables the charge port to accept auxiliary accessories such as rear lights, remote switches, Support Cells and use your light as a power bank to charge USB devices.


An LED display panel that gives clear information on which mode the light is in, runtime remaining in hours and minutes, percentage charged and feedback information during OMS. Patent Protected.


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.



SRP £495
Output 5250 lumens Reflex Boost, 3750 constant
Weight 386grams
Burntime Min 2 hrs Max 36 hrs
Battery Capacity 17,000 mAh Li-Ion
Dimensions (mm) Length - 118, Head - 61, Back – 54
LED’s 6 XPL2(W3)

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