. The Blinder Road twin packs are Hi-powered bike lights specifically designed for road cycling. Delivering a colossal 250-lumen beam of light at the front and 70 lumens at the rear, they’re the first Blinder lights of their kind to give rider’s 100% visibility and freedom at night The Knog Blinder Road 250 is a super-compact, super-light, USB rechargeable, waterproof, integrated silicone package Features: Materials: Polycarbonate housing and PMMA Lens. Hard-anodised aluminium fascia. UV-Resistant silicone Output: Front-250 lumens, rear-70 LumensDimensions: Front-53x30x63mm, rear-27x76x52mmFront Light Modes: Total of 8 light modes: narrow, high, dual beam & flash in both high and lowRear Light Modes: 5 light modes: 1.Steady, 2.Fast, 3.Chaser, 4.Peleton, 5. Eco-FlashRun Times (front): Narrow Beam; 1-2 hours, Wide Beam; 1-2 hours; Dual Beam; 2-3 hours, Flashing; 3-6 hoursRun Times (rear): 3.5 hours in Steady mode, 4 hours in Fast, 5 hours in Chaser, 13 hours in Peloton Mode and 20 hours in Eco-FlashBike Attachment: Front Light – Two removable silicone straps for bars 22-28mm & 29-35mm. Helmet mount included. // Rear Light – Tool-less attachment for standard rear posts measuring 22-32mmLens: Use of an optic design to provide a balanced ratio of beam width and distance to safely illuminate you and the path aheadConstant Current Drive Tech: Maintains consistent brightness throughout specified run-timeBattery: USB Rechargeable Lithium PolymerIntegrated USB Plug: Designed for the elements, 100% waterproofThermal Management: Automatically regulates the light output for optimum performance Weight: Front-75g, rear-52gBuy Knog Accessories from Chain Reaction Cycles, the World’s Largest Online Bike Store.