The silva v lo sport bike light is a high powered waterproof and compact bike light that has incorporated silva s intelligent light to offer you an optimised light distribution making this ideal for making sure you can see and be seen while commuting or enjoying an evening ride once you have attached the bike light holder onto your handle bars this compact bike light will easily and securely fit into place and it has a pivot making it easy to adjust the aim of the light the v lo takes just 3 aaa