The Bontrager Ion 100 and Flare R City light set is the ideal set for if you are needing to be seen on the roads. A front and rear light is a must! The broad and powerful beam pattern of both the Ion 100 and the Flare R City make for an eye catching visual effect. The set is ideal for city and town riding where keeping yourself visible to other road users is vital. The lights are USB rechargeable which makes them super convenient if you are using them to commute to and from work. If you run out of battery on the way to work you can charge them throughout the day, via the Micro USB port located on both lights. Attach the lights with the quick and easy to remove/install mounting. The silicone rubber straps allow you to fasten the lights to several seat post and handlebar sizes. Key Features Brightness: Daytime lights Power Source: USB rechargeable Mounting: Two quick connect brackets Light modes: Daytime Running Lights feature flash, focus, and range to be seen during the day. Front/Rear/Set: Set Lighting Buying Guide