Exposure blaze mk3 rear bike lightdespite its compact size, the blaze mk3 offers you a bright 80 lumens output plus exposures advanced ldquoreaktrdquo technology, which senses sudden decelerations when you brake and flares the light up to 150 lumens'. '.strtoupper('t')his ensures you cant be missed by other road users behind you, even in bright sunlight or street lit areas'. '.strtoupper('h')eld in a tough aluminium case, this durable and reliable rear bike light is fully waterproof for riding in poor conditions, has six different light modes and a battery life of up to 48 hours.features casing material anodised 6063 aluminium light source red xpe r cree led maximum output 80 lumens reakt 150 programs 6 waterproof yes, ipx6 water resistance dimensions 70x28mm rechargeable battery yes, lithium ion battery run time 6 48 hours battery life depending on setting recharge time 4 hours full recharge time battery removeable no charger included yes, usb charging cable seatpost compatibility universal due to strap mount technologies reakt, oms, itm, cfd, spt, fuel gauge use road, gravel, hybrid visibility from over 1 kilometre away 240deg visibility integrated fuel gaugereakt technologydaybright beam cable free design weight 77g run timeshigh constant 6 hourshigh flashing 12 hoursmedium constant 12 hoursmedium flashing 24 hourslow constant 24 hourslow flashing 48 hoursin the box blaze mk3 rear light seatpost bracket usb charging cable quick start guidetechnologiesreakt rear lighting that flares up automatically under braking'. '.strtoupper('i')t 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 shadeoptimised 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 blastdaybright setting this bespoke pulse pattern is designed for daylight use and is more conspicuous than a regular pulse and visible from over a kilometre away, even in the brightest conditions'. '.strtoupper('d')aybright mode will get you noticed'. '.strtoupper('b')e seen, be safecable free design cfd the battery is housed within the body of the light so there are no cables or separate battery units giving a neat solution with less opportunities for water ingress, mounting difficulties and crash damage'. '.strtoupper('c')ombined with the renowned quick release mounting bracket, this light is easy and quick to mount with rock solid attachmentexposure lights from chain reaction cycles, the world's largest online bike store.