RitchieSport Compass Features: Easy-to-Install on Windshield or Dash Two-Sided, Self-Adhesive Mounting Pads Included Reversible Bracket Adjusts through 300 degrees 2" Direct-Reading, High Visibility Dials Internal Green Night Lighting High Temp Composite Construction for Extended Operating Range Hardened Steel Pivot and Sapphire Jewel Movement Built-in Compensators Exclusive 5-Year Ritchie Warranty Comes standard with 12V lighting.