Ritchie Navigator Compass - Bulkhead Mount - Black. 75" (14.61cm) Mounting Hole Internal Gimbal Systems for Maximum Stability During Adverse Pitch and Roll Conditions Scientifically Matched Sapphire Jewel and Hardened Steel Pivot Dial Movement Fiberglass Reinforced Bowl 45 degree Lubber Lines Exclusive Built-in 12V Amber LED Lighting Built-in Compensators to Easily Adjust for Deviation 100percent Repairable Exclusive 5-Year Ritchie Warranty Approx. Shipping Weight: 2 lbs 5 oz (1.05 kg) For Navigators built before 1986 please see the service manual page 6-12 or contact Ritchie for replacement lighting. 12 volt lighting standard - 24 & 32V lighting options are available. Package Contents: Ritchie BN-202 Navigator Compass Ritchie BN-202: BN-202 Navigator Compass - Bulkhead Mount - Black