Bought this for my daughter that commutes to work on her bike. Great lights for a safe ride. Sturdy and waterproof. Light is perfect for the evening commute home. My only ding is the rear light strap is, apparently, easy to lose. After a week she ordered another. The front light is no issue.
Have everything ready before puncturing the cylinder. I usually bring a back up cylinder. One time use but the top is reusable. A must have if you don't have a mini pump.
Model was recommended to me as replacement by customer service rep because the flexible air hose is much gentler on presta valve stems than conventional compact frame pumps. - STILL very reliable either to top-off air pressure or repair flat on the road.