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Posted 20 hours ago

Exposure Lights Sirius MK10 Daybright Front Bike Light

£9.9£99Clearance
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There are cheaper options out there, though. Giant's Recon HL1100 that Stu tested a couple of years ago will save you 20 quid while still offering some impressive smart technology to rival Exposure's OMS and 200 more lumens. Day Bright: Bespoke pulse pattern designed for daylight use which is more conspicuous than a regular pulse and visible from over a kilometre away, even in the brightest conditions. DayBright mode will get you noticed. Be Seen Be Safe. Options for everyone. Depending on your needs you could have less complexity but the trade-off would be someone else not getting what they need. The point of all this is to keep brain power and guessing to a minimum when you find yourself at the limit while also offering a ton of choices. When riding, each press of the button will show a coloured LED. Green for high, amber for medium, and red for low. The main display panel also shows the mode you are in and a countdown timer. In case you forget which program you are in, the display shows that when you turn the light on and if the light is upside down, the display swaps direction.

When not in Reflex programme one, I found programme four was the most suitable for my needs. In programme four on the high setting I managed to get 2 hours 40 minutes of run-time, a full 40 minutes longer than the light’s claimed endurance. 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.Burn time for the power is good but not the best and not using USB-C for the connections makes it harder than it needs to be.

Day Bright: 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 You can see the two different types of lights Exposure uses for the road beam pattern and you can also see the sensor for headlights in the bottom right (Image credit: Josh Ross) It wouldn't be my first choice for evening training rides – lanes, tight corners and descents at speed need more peripheral vision than the Sirius offers, in my opinion – but I've been using it primarily for commuting, where it's been ideal: 80 per cent urban riding, 20 per cent unlit roads, no lanes. Its low, medium and high modes make it perfect for variable surroundings. Easy to use There's a DayBright function too (accessible from any of the three constant modes) with two different flashing patterns that will get you noticed during daylight hours.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.

AKTiv is a technology that dims the light in response to a car's headlights. Fancy name aside, there's a light sensor in the front of the unit. Hit it with a sufficiently bright light and the power of the Strada drops. If you'd prefer not to have your light dim for cars, you can turn it off. Both the AKTiv lights and those without the feature do come with an, optionally used, wired remote to dim the lights manually. Exposure Sirius Mk10 the ultimate “to be seen” front light, now with the output increased to 900 lumens to light the road ahead in the dark nights. The Sirius hits the sweet spot for power to weight, housed in a CNC machined aluminium body that features 240° front and side illumination giving the flexibility to be used for the daily commute or longer rides. Like most of Exposure's lights, the Sirius has an anodised 6063 aluminium casing. Drop it and you might scratch the finish but you're unlikely to cause any damage that's going to affect the function. It really is ruff 'n' tuff. The light has an IPX6 rating, meaning that water won't get inside during normal use.

Exposure Six Pack MK10 performance

What about the actual light quality though? The road-specific beam pattern on the Strada uses two different beams that combine. One is a typical round shape that stays centred without much width. The other has a letterbox shape that extends much farther from the centre. The effect of the two combined is a letterbox with a bright centre. The cutoff at the top and bottom is fairly sharp and the design is symmetrical so it works no matter which way up the light is mounted. The Sirius from Exposure Lights the ultimate “to be seen” front light, now with the output increased to 900 lumens to light the road ahead in the dark nights. The Sirius hits the sweet spot for power to weight, housed in a CNC machined aluminium body that features 240° front and side illumination giving the flexibility to be used for the daily commute or longer rides. Whether the additional 50 lumens makes a huge difference over the MK9 is debatable, but extra lumens are always appreciated, and Exposure hasn't upped the price. Little LEDs alongside the button shine for a couple of seconds to tell you which mode you're in. Green indicates high, amber is medium and low is red, which is pretty easy to remember. The LEDs then become battery level indicators, again using a traffic light sequence, giving you plenty of opportunity to switch to a low power mode if you're running on fumes. The lowest power constant mode has a run-time of 36hrs so you really shouldn't get caught out. Exposure prints all of the various run-times on the bottom of the aluminium casing, and in my experience they're pretty accurate. Shape and beam quality is excellent. Keeps it from feeling like riding in a tunnel and there’s a fairly tight cutoff. I would like to see a bit higher max lumens though.

The rear emits a powerful 75 lumens, or up to 120 using ReACT technology, which is an intelligent system that meansit flares under braking and adapts to ambient light conditions; brightening in well-lit areas and dimming when you move into darker or shady zones.The Daybright mode is an interesting feature that, as the name suggests, is intended to get you seen while riding during the day. It's a pulse pattern that's really bright and noticeable from a long way off – we're talking hundreds of metres – even on a sunny day. Smart Port+ Technology - 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. The OLED display that gives you mode, run time and recharge information (Image credit: Guy Kesteven) From time to time carriers may deliver earlier or later, or on non working days however this is cannot be guaranteed nor should it be expected.

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