The plus rear bike light a super bright light that can be mounted on your bike or clipped onto your clothing helmet backpack etc. Equally impressive as a primary or secondary bike light plus is perfect for commuters and road cyclists alike. Our most versatile bike light ever. Mount to your seat post seat stay or remove from the mount and clip it onto just about anything. Features be seen from up to 450 metres away latest cob technology efficient chip on board cob leds provide maximum brightness level for up to 90% of the battery burn time. Integrated usb connector plus plugs directly into usb a ports and is designed to be exposed to the elements. Just remove from its magnetic mount and youre ready to charge. Charge indicators when plus is running low on battery a red ring will light up around the button. This ring will also show when charging and turn off once fully charged mount it or wear it mount on the handlebar head tube forks... Anything goes. Or remove from the mount and it now doubles as a wearable running light or versatile camping light. Specifications bulb type chip on board cob leds light output 20 lumen run time eco flash 40 hrs steady 2 hrs charge time 2 hrs waterproof yes ip67 rating light modes 5 fits handle bars 22 ndash 32mm diameter rechargable yes integrated usb a connector dimensions h 66 mm x w 24 mm x l 14 mm weight 17 grams low battery indicator yes straps small 22 32 mm and large included up to 200 mm operating temperature 20 to 50 degc 4 to 122 degf optimum charging temperature 20 to 22 degc 68 to 72 degf room temperature