Hecto Drive STVZOGerman STVZO optimized lens with approved flood and long-range beam. High performance LED delivers 40 Lux (140 lumens) and up to 7 hours of runtime. Durable, heat-dissipating CNC machined aluminium construction. Versatile strap securely fits to most handlebar shapes and sizes. Available in four colours (Black, Silver, Blue, Red).Femto USB Drive KTVZOGerman STVZO optimized lens with up to 270° of visibility. High performance LED delivers 8 lumens and up to 8 hours of runtime. Lightweight and compact co-moulded construction. IPX7 waterproof rating. Versatile, secure mounting strap. Micro-USB rechargeable.Features:Up to 7 hours runtime.,German STVZO optimized lens. ,CNC Machined aluminium (front only).,IPX7 waterproof rating (rear only).,Fits to most handlebars and seatposts.,Micro USB rechargeable (rear only)..