Compact aero-post compatible safety light featuring a Daytime Flash mode. Its co-moulded construction is super light yet durable and has an IPX7 waterproof rating. Up to 19.5 hours of runtime 6.5 hour increase with highly improved optics. Its Wide Angle Lens offers over 270° of visibility. The KTV Drive Pro Rear provides up to 75 lumens Daytime Flash and five output/flash modes. And it features an integrated USB stick for convenient cable-free recharging. Also available in pairs. Max Lumens: 75.Weight: 45g.Max Runtime: 19.5 hours.Recharge Time: 3 hours.