The ideal way to mount your Exposure Joystick, Diablo or Spark light to your helmet, the Exposure Helmet Mount combines a precise ball mount for accurate positioning with a lightweight plastic that weighs a mere 18g. For the most secure hold we recommend the use of an Exposure Wrist Lanyard to prevent your light becoming dislodged from your mount when riding through low hanging branches. 2 Year Warranty Every Exposure product comes with a full 2 year warranty & continued support from the excellent Exposure Lights Service Team so you can cycle worry-free.