Have used the CatEye bike lights 2 weeks. Result: good field illumination, very bright, needs to be properly aligned on the handlebars so that oncoming traffic is not dazzled. Light is easy to install, has but on dirt roads solved before, but can be tightened quickly. Is a bit hard, the batteries inside just have weight. Lighting is easy to use, good the strips are the lights on the two fronts when the lamp with, so it is also visible from the side and can easily control whether the light is on or off. Have the bike lighting is not used when it is raining, so can not say if everything is tight. I would buy the bicycle lamp again.