Knog blinder road 250 front lightthe blinder road 250 is a specifically designed hi powered road light for the discerning rider. With incredible power weight ratio and dual and constant flash modes, you won't find another light like this. The knog blinder road 250 has two high intensity lumileds leds.incorporating both wide and narrow angle beams, the blinder road 250 floods any street in light, giving cyclists total night vision whilst being visible to others at over 1000m.featuresmaterials polycarbonate housing and pmma lens. Hard anodised aluminium fascia. Uv resistant siliconelight output 250 lumensdimensions 53x30x63mmlight modes total of 8 light modes narrow, high, dual beam flash in both high and lowbike attachment 2x interchangeable straps for handlebars 22 28mm 29 35mm. Helmet mount includedlens use of an optic design to provide a balanced ratio of beam width and distance to safely illuminate you and the path aheadbattery usb rechargeable lithium polymerintegrated usb plug designed for the elements, 100% waterproofthermal management automatically regulates the light output for optimum performanceweight 75gbuy knog accessories from chain reaction cycles, the world's largest online bike store.