Compact aero-post compatible safety light with two bright LEDs. It features a super lightweight yet durable co-moulded construction that is IPX7 waterproof rated. Up to 20 hours of runtime seven hour increase with highly improved optics. Its Wide Angle Lens offers over 180° of visibility. The KTV Drive rear provides up to 10 lumens and five output/flash modes. And it features an integrated USB stick for convenient cable-free recharging. The KTV Drive Rear is available in Black. Also available in pairs. Max Lumens: 10 lumens.Weight: 54g.Max Runtime:20 hours.Recharge Time: 3 hours.