Timing Light Self-Powered Detachable Lead Plastic Requires 6 AAA-Cell Batteries
MSD Ignition 8991 Timing Light, Self-Powered, Detachable Lead, Plastic, Requires 6 AAA-Cell Batteries, Each. Please Click on the "Read More" link for additional details about this item. Thank you, Summit Racing Equipment. The World's Speed Shop Since 1968.