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 and continued support from the excellent Exposure Lights Service Team so you can cycle worry-free.