Features: - This kind of bicycle LED front light brings you double safety and cool bicycle experiences- Precise manufactural optics technology, can effectively protect people eyes oppose to you- Steady electricity output, longer lighting life than other lamps- Super bright white 1 LED, enable you to see the way 60m ahead and warn others- Waterproof IPX5, can be used in rainy day- Has 3 modes: high brightness ( 4 hours ), low brightness ( 20 hours ), flash ( 30 hours )- Battery: 3 x AAA batteries ( not included )- Fast and easy installation, no tools required- Adjustable strap can fasten effectivelyMounting Placement: Frame,Handlebar Power Supply: BatteryPackage weight: 0.11972 kg Product Size(L x W x H): 9.00 x 2.70 x 2.30 cm / 3.54 x 1.06 x 0.91 inches Package Size(L x W x H): 9.50 x 3.20 x 10.00 cm / 3.74 x 1.26 x 3.94 inchesPackage Contents: 1 x Light with BracketIPXX Rating ChartIP Code The IP Code (or International Protection Rating, sometimes also interpreted as Ingress Protection Rating*) consists of the letters IP followed by two digits and an optional letter. As defined in international standard IEC 60529, it classifies the degrees of protection provided against the intrusion of solid objects (including body parts like hands and fingers), dust, accidental contact, and water in electrical enclosures. The standard aims to provide users more detailed information than vague marketing terms such as waterproof.The digits (characteristic numerals) indicate conformity with the conditions summarized in the tables below. For example, an electrical socket rated IP22 is protected against insertion of fingers and will not be damaged or become unsafe during a specified test in which it is exposed to vertically or nearly vertically dripping water. IP22 or 2X are typical minimum requirements for the design of electrical accessories for indoor use.