Extremely bright Solarc 10W HID light. Equal to 50W Halogen. This light fits directly onto the Hope stem ( other stem mounts are available please contact shop ). This rigid mounting allows you to set the light in the middle of your bars. The small Li-Ion battery mounts underneath the stem. The connections are fully sealed and waterproof. The 14.8v Li-Ion battery will last for a minimum of 2.5hrs burn time and will recharge in just 3 hours All housings are CNC machined from solid aluminum billet. Stem not included