The Super 7 Bright Sight has 7 colors (green, blue, light blue, red, amber, violet, and white). It has a variable brightness adjustment as well as a solid or blinking light option. The light automatically shuts off after 5 minutes to prolong battery life. It operates on one AAA battery (lithium batteries recommended). The battery life can be tested by pressing and holding the on button. The Super 7 Bright Sight memory stores the color, brightness, and flashing settings that were last used. Unit weighs 1.6oz with battery. For use on all Specialty Archery scopes, requires the use of a Glow Ring and 007 Fiber Kit. Also compatible with other manufacturers scopes, requires the use of our 007 Fiber Kits.